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User Manual: pf60

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Bulletin PF-617
Rev 1217

PEM® access hardware for enclosures
where the screw must remain with the
door or panel.

PF™
PEM® CAPTIVE
PANEL SCREWS

PEM® CAPTIVE PANEL SCREWS
PEM® brand captive panel screws are designed to help keep parts to a minimum and eliminate risks associated with loose
hardware that could fall out and damage internal components. These panel fastener assemblies are ideal to attach metal
panels or other thin material components in applications where subsequent access will be necessary.
PF11™/PF12™/PF11M™/PF12M™ large knob,
spring-loaded self-clinching panel screws PAGE 5

PFC2™/PFS2™ screw head, spring-loaded
captive panel screws - PAGE 16

PF11MF™ large knob, spring-loaded flaremounted captive panel screws - PAGE 6

PTL2™/PSL2™ locating pin, spring-loaded
plunger assemblies - PAGE 17

PF11MW™ large knob, spring-loaded flaremounted, floating captive panel screws PAGE 7

SCBR™ tool only, spinning clinch bolt with
spring - PAGE 18

PF11PM™ large knob, spring-loaded plastic
PEM® C.A.P.S.® captive panel screws PAGE 8

SCB™/SCBJ™ tool only, spinning clinch bolts,
no spring - PAGE 19

PFHV™ screw head, no spring captive panel
screws - PAGE 9

HSCB™, HSR™, and HSL™ heat sink mounting
fastener system - PAGES 20 - 21

PF7M™ screw head, spring-loaded selfclinching captive panel screws - PAGE 10

PF10™ tool only, flush-mounted captive panel
screws, no spring - PAGES 22 - 23

PF7MF™ flare-mounted captive panel screws
for installing into stainless steel - PAGE 11

REELFAST® SMTPFLSM™ surface mount
spring-loaded captive panel screws PAGE 24

PF30™ low-profile knob, spring-loaded captive
panel screws - PAGE 12

REELFAST® SMTPF™ surface mount, panel
screw components and assembly data PAGE 25

PF50™ and PF60™ low-profile knob, springloaded captive panel screws - PAGE 13

PFK™ screw head, spring-loaded broaching
captive panel screws - PAGE 26

PFC4™ recessed-head captive panel screws
for installing into stainless steel - PAGE 14

Value-added capabilities - PAGE 27

PFC2P™ tool only, non flush, spring-loaded
captive panel screws - PAGE 15

Captive panel screw installation - PAGES 28 - 36
Captive panel screw performance data - PAGES 37 - 41
Captive panel screw capabilities - PAGE 42

HEIGHT COMPARISON GUIDE AND STANDARD DRIVER RECESS

Installed and fastened height above sheet for M3 Thread size.
PF7M/PF7MF

PFC2P

PF-2 PennEngineering • www.pemnet.com

PFC4

PFC2/PFS2
PFK

PF50/PF51/PF52
PF60/PF61/PF62

PF30/31/32

PF11/PF12
PF11M/PF12M

CAPTIVE PANEL SCREW SELECTOR GUIDE
Application Requires:
PEM®
Panel
Fastener
Type

Actuation		
Installs into							
			
Includes			
		
							
Painted				
Available
anti
Mating
High						
Printed Stainless
panels
Multiple
Flush
Available
in
crosshole
Page 		
UL
corrosion Spring Tool		 Hand Thinner circuit
steel
and/or any
screw mounted
in
custom threading
misaNo.
Approved resistance loaded				
sheets boards
sheet
hardness
lengths top side
black
colors
feature lignment

PF11

5			

•

•

•					

PF11M

5			

•

•

•					 •		•		•

PF12

5			

•

•						

PF12M

5			

•

•						 •		•		•

•		

•

•		

•

PF11MF

6			

•

•

•		•

•

•		•		•

PF12MF

6			

•

•		
•		•

•

•		•		•

PF11MW

7			

•

•

PF12MW

7			

•

•		
•

•
•

•

•

•

•

•		•		•

•

•

•

•

•		•		•

•

•					

•		

•(1)

PFHV

9				 •						

•		

•

PF7M

10			

•

•

•					

•				

•

PF7MF

11			

•

•

•

•				

•

PF30
PF31
PF32

12			

•

•

•							

•

PF50
PF51
PF52

13			

•

•

•					

•		

•

PF60
PF61
PF62

13			

•

•						

•		

•

PFC4

14

•		•

•				•		 •

PFC2P

15

•		

•

•						

•		

•

PFC2

16		

•

•

•					

•		

•

PFS2

16			

•

•

•					

•		

•

SCBR

18			

•

•

PEM C.A.P.S.

SCB/SCBJ

8			

•

20-21			

PF10

22-23

SMTPF
PFK

•

19				

HSCB
SMTPFLSM

•

•

•

•		

•

•

•						
•

•

•

•		

•			

•

•				

25				

•

•		

•			

•		

26		

•

•		

•			

•		

•

•

•

•

•		 •							

24			

•

•

(1)

•

•

•

(1) Standard color is black.
PF11MF

PF11MW

PEM C.A.P.S.®

HSCB

PFHV

SCBR

SCB/SCBJ

PF10

PennEngineering • www.pemnet.com PF-3

PEM® PF11™/PF12™ CAPTIVE PANEL SCREWS
PEM® PF11/PF12 panel fasteners provide design flexibility by offering three styles of installation types, each having the same profile
or look above the sheet or panel into which it is installed. The various mounting types include self-clinching, flare-mounted, and
floating styles. Each offers a distinct advantage depending on your application. The standard selection of knobs include knurled
or smooth metal caps and plastic PEM C.A.P.S.® (colored access panel screws).

Key features include:

Self-clinching

1

2

Flare-mounted

Universal
Phillips/
slot
drive*

3

1) Universal Phillips/slot drive (except for plastic cap).
2) Shoulder on retainer to provide positive stop during installation.
3) Anti cross-threading feature (designated with an “M” in the
part number). Eases assembly, aligns components, improves
assembly line productivity, prevents jamming, and slides
through clogged internal threads.

Floating

ANTI CROSS-THREAD TECHNOLOGY - HOW IT WORKS
PennEngineering is a licensee for MAThread® technology, a registered trademark of MAThread Inc.

Shoulder
on
retainer

-1-

-2-

MISALIGNED AXIS

THREADS CAM

-3-

THREADS DRIVE NORMALLY

* Plastic cap version has Phillips drive only.

Standard Mounting Styles:
Self-clinching

Flare-mounted

• Installs flush on back side of panel.
• Available in three screw
lengths.

• Appropriate for close centerline-to-edge
applications.
• Doesn’t require high installation
force.
• Installs into any panel hardness.
• Installs flush on back side of panel.
• Can be installed into most any thin
material.
• Appropriate for painted panels.

Flare-mounted, Floating
• Compensates for mating hole misalignment.
• Installs into any panel hardness.

Standard Cap Selection:

Metal Cap knurled
All metal cap available with
knurls.

Metal Cap Un-knurled
All metal cap available
without knurls.

Black Metal Cap
DuraBlack™ finish is scratch resistant.
Finish is on both metal cap and screw.
(finish code “BL”)

Plastic Cap
Available with custom
color plastic cap.
(See page 8 for colors)

Available Drive Configurations:
PF11

Phillips/slot

(Standard except for plastic cap)

PF11P

PF11LS

PF11S

Phillips

Torx®/Slot
Combination

(Optional)

(Optional)

Slotted

PF11L

Torx®

(Optional)

(Optional)

PennEngineering is a licensee for Acument Global Technologies (Torx®).

PF-4 PennEngineering • www.pemnet.com

© 2017 PennEngineering.

PEM® PF11™/PF12™/PF11M™/PF12M™ CAPTIVE PANEL SCREWS
Dimples on head
designate metric thread.

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g

Phillips
driver size.

PF11

(See chart)

Knurled Cap

PF12

Finish: Optional Finish (BL):
Knob: Natural Finish
Knob: Black anodize (2)
Retainer: Bright nickel over copper flash
Screw: Black nitride,
		
per ASTM B689
AMS2753, Section 3 (2)
Screw (PF11/PF12): Passivated and/or tested per ASTM A380
Screw: (PF11M/PF12M): Zinc plated, 5µm, colorless (3)
Spring: Natural Finish

Smooth Cap

E
Shoulder
provides
positive
stop during
installation.

Material:
Knob: Aluminum
Retainer: Hardened Carbon Steel
Screw (PF11/PF12): 400 Series Stainless Steel
Screw (PF11M/PF12M): Hardened Carbon Steel (1)
Spring: 300 Series Stainless Steel

T2

For use in sheet hardness:
HRB 80 or less (Hardness Rockwell “B” Scale) / HB 150 or less (Hardness Brinell)

T1

PART NUMBER DESIGNATION
P

C

PF11

G

A

M

–

632

–

1

BL

Screw
Length
Code

Optional
DuraBlack
finish

Clinching profile may vary.

Float .010”/0.25mm minimum, in all directions from center, .020”/0.5mm total.

Type Optional
Thread
Anti-cross thread Code
feature

Installation Data page 28. Performance Data page 36.
All dimensions are in inches.

UNIFIED

Thread
Size

Type
Knurled Smooth
Cap
Cap

Thread
Code

.112-40
(#4-40)

PF11
PF11M

PF12
PF12M

440

.138-32
(#6-32)

PF11
PF11M

PF12
PF12M

632

.164-32
(#8-32)

PF11
PF11M

PF12
PF12M

832

.190-32
(#10-32)

PF11
PF11M

PF12
PF12M

032

.250-20
(1/4-20)

PF11
PF11M

PF12
PF12M

0420

Screw
Length
Code

A
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ .003
- .000

C
Max.

E
± .010

.036

.036

.219

.218

.417

0
1
2
0
1
2
0
1
2
0
1
2
0
1
2

.036

.036

.250

.249

.450

.036

.036

.312

.311

.514

.036

.036

.312

.311

.514

.036

.036

.375

.374

.575

Screw
Length
Code

A
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ 0.08

C
Max.

E
± 0.25

0.92

0.92

5.56

5.54

10.59

0.92

0.92

6.35

6.33

11.43

0.92

0.92

7.92

7.9

13.06

0.92

0.92

7.92

7.9

13.06

0.92

0.92

9.53

9.5

14.61

G
± .025

P
± .025

.170
.230
.290
.230
.290
.350
.230
.290
.350
.230
.290
.350
.290
.350
.410

.000
.060
.120
.000
.060
.120
.000
.060
.120
.000
.060
.120
.000
.060
.120

G
± 0.64

P
± 0.64

4.32
5.84
7.37
5.84
7.37
8.89
5.84
7.37
8.89
5.84
7.37
8.89
7.37
8.89
10.41

0
1.52
3.05
0
1.52
3.05
0
1.52
3.05
0
1.52
3.05
0
1.52
3.05

T1
Nom.

T2
Nom.

Driver
Size

Min. Dist.
Hole
C/LTo
Edge

.310

.450

#1

.28

.450

.640

#2

.29

.450

.640

#2

.33

.450

.640

#2

.33

.530

.790

#3

.46

T1
Nom.

T2
Nom.

Driver
Size

Min. Dist.
Hole
C/LTo
Edge

7.87

11.43

#1

7.11

11.43

16.26

#2

7.37

11.43

16.26

#2

8.38

11.43

16.26

#2

8.38

13.46

20.07

#3

11.68

All dimensions are in millimeters.

METRIC

Thread
Size x
Pitch

Type
Knurled Smooth
Cap
Cap

Thread
Code

M3 x 0.5

PF11
PF11M

PF12
PF12M

M3

M3.5 x 0.6

PF11
PF11M

PF12
PF12M

M3.5

M4 x 0.7

PF11
PF11M

PF12
PF12M

M4

M5 x 0.8

PF11
PF11M

PF12
PF12M

M5

M6 x 1

PF11
PF11M

PF12
PF12M

M6

0
1
2
0
1
2
0
1
2
0
1
2
0
1
2

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) “BL” suffix will be added to part number to designate DuraBlack™ finish.
(3) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.

PennEngineering • www.pemnet.com PF-5

PEM® PF11MF™ FLARE-MOUNTED CAPTIVE PANEL SCREWS

Dimples on head
designate metric thread.

PF11MF

Phillips
driver size.

Knurled Cap

PF12MF

(See chart)

Smooth Cap

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Knob: Aluminum
Retainer: Aluminum
Screw: Hardened Carbon Steel
Spring: 300 Series Stainless Steel
Finish:		
Knob: Natural Finish
Retainer: Natural Finish
Screw: Zinc plated, 5µm, colorless (3)
Spring: Natural Finish

Optional Finish (BL):
Knob: Black anodize (2)
Screw: Black nitride
AMS2753,
Section 3 (2)

E
Shoulder
provides
positive
stop during
installation.

PART NUMBER DESIGNATION

T2

C

T1

PF11
PF12

G

Type

A

P

M
M

F
F

–
–

Anti-cross FlareThread mounted
Style
Feature

632 – 1
632 – 1

Thread Screw
Code Length
Code

BL

Optional
DuraBlack
finish

Float .010”/0.25mm minimum, in all directions from center, .020”/0.5mm total.

Installation Data page 28. Performance Data page 36.

UNIFIED

All dimensions are in inches.

		
Type			
			
Hole Size
Screw
Min.
Thread			
Thread
A
In Sheet
C
E
G
Length
Sheet
Size
Knurled
Smooth
Code
Max.
+ .005
Max.
± .010
± .025
Code
Thickness
		
Cap
Cap				
- .000
		 0						 .170
.112-40		
PF11MF
PF12MF
440
1
.041
.031
.187
.186
.417
.230
(#4-40)
					2						.290
		 0						 .230
.138-32		
PF11MF
PF12MF
632
1
.072
.060
.213
.212
.450
.290
(#6-32)
					2						.350
			0						.230
.164-32
PF11MF
PF12MF
832
1
.072
.060
.266
.265
.514
.290
(#8-32)
					2						.350
			0						.230
.190-32
PF11MF
PF12MF
032
1
.072
.060
.266
.265
.514
.290
(#10-32)
					2						.350
		 0						 .290
.250-20		
PF11MF
PF12MF
0420
1
.072
.060
.323
.322
.575
.350
(1/4-20)
					2						.410

P
± .025
.000
.055
.115
.000
.024
.084
.000
.024
.084
.000
.024
.084
.000
.024
.084

T1
Nom.

T2
Nom.

Driver
Size

.310

.450

#1

.450

.640

#2

.450

.640

#2

.450

.640

#2

.530

.790

#3

T1
Nom.

T2
Nom.

Driver
Size

7.87

11.43

#1

11.43

16.26

#2

11.43

16.26

#2

13.46

20.07

#3

METRIC

All dimensions are in millimeters.

		
Type			
			
Screw
Min.
Hole Size
Thread			
Thread
A
C
E
G
Length
Sheet
In Sheet
Size x
Knurled
Smooth
Code
Max.
Max.
± 0.25
± 0.64
Code
Thickness
+ 0.1
Pitch
Cap
Cap				
		
0						
4.32
M3 x 0.5
PF11MF
PF12MF
M3
1
1.05
0.79
4.75
4.73
10.59
5.84
					
2						7.37
		
		
0						
5.84
M4 x 0.7
PF11MF
PF12MF
M4
1
1.83
1.52
6.76
6.74
13.06
7.37
					
2						
8.89
		
		
0						
5.84
M5 x 0.8
PF11MF
PF12MF
M5
1
1.83
1.52
6.76
6.74
13.06
7.37
					
2						
8.89
		
		
0						7.37
M6 x 1
PF11MF
PF12MF
M6
1
1.83
1.52
8.2
8.18
14.61
8.89
					
2						
10.41

P
± 0.64
0
1.4
2.92
0
0.61
2.13
0
0.61
2.13
0
0.61
2.13

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) “BL” suffix will be added to part number to designate DuraBlack™ finish.
(3) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.

PF-6 PennEngineering • www.pemnet.com

PEM® PF11MW™ FLARE-MOUNTED, FLOATING CAPTIVE PANEL SCREW
Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Knob: Aluminum
Retainer: Aluminum
Screw: Hardened Carbon Steel
Spring: 300 Series Stainless Steel
Washer: 300 Series Stainless Steel

Dimples on head
designate metric thread.

Finish:		
Knob: Natural Finish
Retainer: Natural Finish
Screw: Zinc plated, 5µm, colorless (3)
Spring: Natural Finish
Washer: Natural Finish

Phillips
driver size.

PF11MW

Knurled Cap

(See chart)

PF12MW

Smooth Cap

E
Shoulder
provides
positive
stop during
installation.

PANEL CONFIGURATION 1

For applications where a space
between mating panels is acceptable.

T2
L2
L1

W

T1

PANEL CONFIGURATION 2

For applications where a space between
mating panels is not acceptable.

D

A

D

B
G

A

H

PART NUMBER DESIGNATION
PF11
PF12

.025” / 0.64mm Nom.

Optional Finish (BL):
Knob: Black anodize (2)
Screw: Black nitride,
AMS2753,
Section 3 (2)

M
M

W – 632 – 1
W – 632 – 1

1
1

BL

Installation Data page 29. Performance Data page 36.

Type

Optional
DuraBlack
finish

Floating Thread Shank Screw
Antistyle Code Code (4) Length
cross
Code (4)
Thread Feature

PF11MW panel fasteners are shipped with mating washers.
All dimensions are in inches.

UNIFIED

		
Type				
Thread			
Thread Shank
Size
Knurled
Smooth
Code
Code
		 Cap
Cap		(4)

Screw
Length
Code
(4)

A		
D Hole Size								
Max.
B
In Sheet
E
G
H
L1
L2
T1
T2
Driver
Min.
Sheet
Min.
+.003
±.010
Nom.
Min.
Nom.
Max.
Nom.
Nom.
Size
Total
Thickness		–.001									
Float

W
Nom.

.112-40					
1					
.230
PF11MW
PF12MW
440
1
.063
.111
.250
.417
(#4-40)
2
.290

.375

.137

.127

.310

.450

#1

.073

.312

.138-32					
1					
.290
PF11MW
PF12MW
632
1
.063
.115
.283
.450
(#6-32)
2
.350

.413

.149

.127

.450

.640

#2

.076

.344

.164-32					
1					
.290
PF11MW
PF12MW
832
1
.063
.121
.346
.514
(#8-32)
2
.350

.469

.157

.140

.450

.640

#2

.076

.407

.190-32					
1					
.290
PF11MW
PF12MW
032
1
.063
.121
.346
.514
(#10-32)
2
.350

.469

.157

.140

.450

.640

#2

.076

.407

.250-20					
1					
.350
PF11MW
PF12MW
0420
1
.063
.128
.413
.575
(1/4-20)
2
.410

.531

.157

.140

.530

.790

#3

.081

.468

Min.
Total

W
Nom.

1.85

7.92

1.93

8.74

1.93

10.34

1.93

10.34

2.06

11.89

All dimensions are in millimeters.

METRIC

		
Type				
Thread			
Thread Shank
Size x
Knurled
Smooth
Code
Code
Pitch
Cap
Cap		(4)

Screw
A		
D Hole Size								
Length
Max.
B
In Sheet
E
G
H
L1
L2
T1
T2
Driver
Code
Sheet
Min.
+0.08
±0.25
Nom.
Min.
Nom.
Max.
Nom.
Nom.
Size
(4)
Thickness		–0.03								
Float
1
5.84
M3 x 0.5
PF11MW
PF12MW
M3
1
1.6
2.82
6.35
10.59
9.52
3.48
3.23
7.87
11.43
#1
2					7.37
						
7.37
1
M3.5 x 0.6
PF11MW
PF12MW
M3.5
1
1.6
2.92
7.19
11.43
10.49
3.78
3.23
11.43
16.26
#2
2					8.89
						
7.37
1
M4 x 0.7
PF11MW
PF12MW
M4
1
1.6
3.07
8.79
13.06
11.91
3.99
3.56
11.43
16.26
#2
						 2					8.89
7.37
1
M5 x 0.8
PF11MW
PF12MW
M5
1
1.6
3.07
8.79
13.06
11.91
3.99
3.56
11.43
16.26
#2
						 2					8.89
1
8.89
M6 x 1
PF11MW
PF12MW
M6
1
1.6
3.25
10.49
14.61
13.48
3.99
3.56
13.46 20.07
#3
						 2					10.41

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) “BL” suffix will be added to part number to designate DuraBlack™ finish.
(3) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.
(4) Other shank and screw lengths available.
PennEngineering • www.pemnet.com PF-7

PEM® C.A.P.S.® CAPTIVE PANEL SCREWS
Color Capabilities (1)

Choose a knob color code and add it to the end of the base part number.
Dimples on head
designate metric thread.

Patented.
Red = R

Phillips
driver size.

Shoulder
provides
positive
stop during
installation.

Green = G

Blue = U

Metallic = M

Finish:
Retainer: CN - Bright nickel over
		
copper flash per ASTM B689
Screw: Zinc plated, 5µm, colorless (4)
Spring: Natural Finish

T2
T1

For use in sheet hardness:
HRB 80 or less (Hardness Rockwell “B” Scale)
HB 150 or less (Hardness Brinell)

P

C

A

G

Clinching profile may vary.

PART NUMBER DESIGNATION
PF11

P

Type

Phillips
Drive

M – 632 – 0

B

Float .010”/0.25mm minimum, in all directions from center, .020”/0.5mm total.

Installation Data page 28. Performance Data page 37.

All dimensions are in inches.

UNIFIED

Violet = V

Material:
Knob: PC/ABS (UL 94V-0, halogen-free) (3)
Retainer: Hardened Carbon Steel
Screw: Hardened Carbon Steel
Spring: 300 Series Stainless Steel

Black = B
(Standard)

E

Yellow = Y

Threads:
External, ASME B1.1, 2A /
ASME B1.13M, 6g (2)

PEM® C.A.P.S.® dot
pattern (Registered
trademark)

(See chart)

Orange = N

Anti- Thread
cross Code
Thread
Feature

Screw
Length
Code

Color
Code

Also available with
flare-mounted
retainer as PF11PMF
or with floating style
retainer as PF11PMW.

(Standard
Black)

		
Type		
		
Hole Size								
Min. Dist.
Screw
A
Min.
Thread		
Thread
In Sheet
C
E
G
P
T1
T2
Driver
Hole
Length
(Shank)
Sheet
Size
Knurled
Code
+ .003
Max.
± .010
± .025
± .025
Nom.
Nom.
Size
C/LTo
Code
Max.
Thickness
		
Cap				
- .000								
Edge
			
0						
.170
.000
.112-40
PF11PM
440
1
.036
.036
.219
.218
.417
.230
.060
.310
.450
#2
.28
(#4-40)
				
2						
.290
.120
			0						.230
.000
.138-32
PF11PM
632
1
.036
.036
.250
.249
.450
.290
.060
.450
.640
#2
.29
(#6-32)
				
2						
.350
.120
			
0						
.230
.000
.164-32
PF11PM
832
1
.036
.036
.312
.311
.514
.290
.060
.450
.640
#2
.33
(#8-32)
				
2						
.350
.120
			
0						
.230
.000
.190-32
PF11PM
032
1
.036
.036
.312
.311
.514
.290
.060
.450
.640
#2
.33
(#10-32)
				
2						
.350
.120

METRIC

All dimensions are in millimeters.

Type		
		
								
Min. Dist.
Thread
Screw
A
Min.
Hole Size
		Thread
C
E
G
P
T1
T2
Driver
Hole
Size x
Length
(Shank)
Sheet
In Sheet
Knurled
Code
Max.
± 0.25
± 0.64
± 0.64
Nom.
Nom.
Size
C/LTo
Pitch
Code
Max.
Thickness					
+ 0.08
		
Cap				
				
Edge
			
0						
4.32
0
M3 x 0.5
PF11PM
M3
1
0.92
0.92
5.56
5.54
10.59
5.84
1.52
7.87
11.43
#2
7.11
				
2						
7.37
3.05
				
0						
5.84
0
M4 x 0.7
PF11PM
M4
1
0.92
0.92
7.92
7.9
13.06
7.37
1.52
11.43
16.26
#2
8.38
				
2						
8.89
3.05
				
0						
5.84
0
M5 x 0.8
PF11PM
M5
1
0.92
0.92
7.92
7.9
13.06
7.37
1.52
11.43
16.26
#2
8.38
				
2						
8.89
3.05

(1) The colors shown (except for black) are non-stocked standards and available on special order. Since actual color knob may vary slightly from those
represented, we recommend that you request samples for color verification. If you require a custom color or you need a “color matched” knob, please
contact us.
(2) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(3) Temperature limit is 210˚ F / 99˚ C.
(4) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.

PF-8 PennEngineering • www.pemnet.com

PEM® PFHV™ CAPTIVE PANEL SCREWS
•
•
•
•
•
•

Low cost captive screw design to replace loose hardware.
Small, compact and low profile design for limited access areas.
Two screw lengths.
Universal slot/Phillips recess standard.
Available with MAThread® anti cross-thread technology. (See page 4 for more information).
Available with Torx® recess.
Phillips
driver size.
(See chart)

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)

Dimples on head
designate metric
thread.

Material:
Retainer: Carbon Steel
Screw: Hardened Carbon Steel

For available drive
configurations, see page 4.

Finish:
Retainer: CN - Bright nickel over copper flash per ASTM B689
Screw: CN - Bright nickel over copper flash per ASTM B689 (1)
For use in sheet hardness:
HRB 60 or less (Hardness Rockwell “B” Scale)
HB 107 or less (Hardness Brinell)

E
T2

H
T1

A

P
C

PART NUMBER DESIGNATION
PFHV

Shoulder
provides
positive
stop during
installation.

G

Clinching profile may vary.

Type

–

632

–

Thread Size
Code

0

CN

Screw Finish
Length Code
Code

Installation Data page 29. Performance Data page 37.

UNIFIED

All dimensions are in inches.

				 Screw
Hole Size									
A
Min.
Min. Dist.
T2
Driver
Thread
Thread
In Sheet
C
E
G
H
P
T1
HoleC/L
Type
Length
(Shank)
Sheet
Size		 Code
+
.003
Max.
±
.010
±
.025
±
.005
±.025
Nom.
Nom.
Size
Code
Max.
Thickness
To Edge
							
- .000		
0
.216
.000
.112-40
PFHV
440
.036
.036
.203
.202
.260
.080
(#4-40)			1						
.316		
.095

.260

.436

#1

.21

0
.234
.000
.138-32
PFHV
632
.036
.036
.219
.218
.276
.092
(#6-32)			1						
.359		
.120

.290

.484

#2

.23

.164-32
0
.259
.000
PFHV
832
.036
.036
.252
.251
.309
.111
(#8-32)			1						
.371		
.106

.335

.555

#2

.26

All dimensions are in millimeters.

METRIC

Thread			
Screw
Thread
Size x
Type
Length
		Code
Pitch
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size									
Min. Dist.
T2
Driver
C
E
G
H
P
T1
HoleC/L
In Sheet
Max.
±
0.25
±
0.64
±
0.13
±0.64
Nom.
Nom.
Size
+ 0.08
To Edge

0
5.55
0
M3 x 0.5
PFHV
M3
0.92
0.92
5.5
5.49
6.95
2.03
				 1						7.56		 1.9

6.69

11.25

#1

5.8

0
6.01
0
M3.5 x 0.6
PFHV
M3.5
0.92
0.92
6
5.98
7.45
2.34
				 1						8.42		 2.3

7.45

12.47

#2

6.3

0
6.59
0
M4 x 0.7
PFHV
M4
0.92
0.92
6.4
6.38
7.85
2.79
				 1						
9.39		 2.7

8.5

14.1

#2

6.7

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.

PennEngineering • www.pemnet.com PF-9

PEM® PF7M™/PF7MF™ CAPTIVE PANEL SCREWS
•
•
•
•
•
•
•
•
•

Smallest footprint, spring-loaded panel fastener for limited access areas.
MAThread® anti cross-thread technology. (See page 4 for more information).
Installs flush on back side of panel.
PF7M Self-clinching mounting design provides high pushout resistance.
PF7M does not require special hole preparation.
PF7MF is appropriate for close centerline-to-edge applications.
PF7MF does not require high installation force.
PF7MF installs into any panel hardness.
Available with Torx® recess.

PF7M

PF7MF

PF7M™ SELF-CLINCHING CAPTIVE PANEL SCREWS

Dimples on head
designate metric thread.
Phillips
driver size.
(See chart)

Patented.

H

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Retainer: Carbon Steel
Screw: Hardened Carbon Steel
Spring: 300 Series Stainless Steel
Finish:
Retainer: CN - Bright nickel over copper flash per ASTM B689
Screw: CN - Bright nickel over copper flash per ASTM B689
Spring: Natural Finish
For use in sheet hardness:
HRB 60 or less (Hardness Rockwell “B” Scale)
HB 107 or less (Hardness Brinell)

Shoulder
provides
positive
stop during
installation.

T2
T1

PART NUMBER DESIGNATION
PF7

P
C
E

A

M – 632 – 0

CN

G

Clinching profile may vary.

Type

Anti
Thread
Cross-thread Size
Feature
Code

Length
Code

Finish

Installation Data page 30. Performance Data page 37.

UNIFIED

All dimensions are in inches.

Type					Hole Size									
Min.
Screw
A
Min.
In Sheet									
Dist.
Fastener		
Thread
Length
(Shank)
Sheet
+.003
C
E
H
G
P
T1
T2
Driver HoleC/L
Material
Code
Code
Max.
Thickness
–.000
Max.
±.010
±.010
±.025
±.025
Nom.
Nom.
Size
To Edge
Steel
.112-40
0
.210
.000
PF7M
440
.036
.036
.219
.218
.310
.100
.380
.550
#2
.28
(#4-40)			
1							
.270
.065
0
.240
.000
.138-32
PF7M
632
.036
.036
.250
.249
.342
.100
.410
.610
#2
.29
(#6-32)			
1							 .300
.065
0
.240
.000
.164-32
PF7M
832
.036
.036
.312
.311
.405
.120
.430
.630
#2
.33
(#8-32)			
1							 .300
.065

		
		
Thread
Size

METRIC

All dimensions are in millimeters.

Type														
Min.
Screw
A
Min.
Hole Size									
Dist.
Fastener		
Thread
T2
Driver HoleC/L
Length
(Shank)
Sheet
In Sheet
C
E
H
G
P
T1
Material
Code
Code
Max.
Thickness
+0.08
Max.
±0.25
±0.25
±0.64
±0.64
Nom.
Nom.
Size
To Edge
Steel
0
5.33
0
M3
0.92
0.92
5.56
5.54
7.87
2.5
9.65
13.97
#2
7.11
M3 x 0.5
PF7M
				 1							6.86
1.65
0
6.1
0
M4
0.92
0.92
7.92
7.9
10.29
3
10.92
16
#2
8.38
M4 x 0.7
PF7M
				 1							 7.62
1.65

		
Thread
Size x
Pitch

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.

PF-10 PennEngineering • www.pemnet.com

PEM® PF7M™/PF7MF™ CAPTIVE PANEL SCREWS
PF7MF™ FLARE-MOUNTED CAPTIVE PANEL SCREWS

Dimples on head
designate metric thread.
Phillips
driver size.
(See chart)

Patented.

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Retainer: Aluminum
Screw: Hardened Carbon Steel
Spring: 300 Series Stainless Steel
Spring: Natural Finish
Finish:
Retainer: Natural finish
Screw: CN - Bright nickel over copper flash per ASTM B689

H
Shoulder
provides
positive
stop during
installation.

T2

PART NUMBER DESIGNATION
T1

G1
C
E

A

G2

PF7

Type

M

F – 632 – 0

Anti
Flaring
Cross-thread
Feature

Thread Length
Code
Size
Code

Installation Data page 30. Performance Data page 37.

UNIFIED

All dimensions are in inches.

Type					
Hole Size
Screw
A
Min.
In Sheet
Fastener		
Thread
Length
(Shank)
Sheet
+.005
C
E
H
G1
Material
Code
Code
Max.
Thickness
–.000
Max.
±.010
±.010
±.025
Steel
.112-40
0
.040
PF7MF
440
.041
.031
.187
.186
.310
.100
(#4-40)			
1							
.100
0
.040
.138-32
PF7MF
632
.072
.060
.213
.212
.342
.100
(#6-32)			
1							
.100
0
.040
.164-32
PF7MF
832
.072
.060
.266
.265
.405
.120
(#8-32)			
1							
.100

		
		
Thread
Size

G2
±.025
.210
.270
.240
.300
.240
.300

T1
Nom.

T2
Nom.

Driver
Size

.380

.550

#2

.410

.610

#2

.430

.630

#2

G2
±0.64
5.33
6.86
6.1
7.62

T1
Nom.

T2
Nom.

Driver
Size

9.65

13.97

#2

10.92

16

#2

METRIC

All dimensions are in millimeters.

Type
Screw
A
Min.
Hole Size
Fastener		
Thread
Length
(Shank)
Sheet
In Sheet
C
E
H
G1
Material
Code
Code
Max.
Thickness
+0.13
Max.
±0.25
±0.25
±0.64
Steel
0
1.02
1.05
0.79
4.75
4.73
7.87
2.5
M3 x 0.5
PF7MF
M3
				 1							
2.54
0
1.02
M4 x 0.7
PF7MF
M4
1.83
1.52
6.76
6.74
10.29
3
				 1							
2.54

		
Thread
Size x
Pitch

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.

PennEngineering • www.pemnet.com PF-11

PEM® PF30™/PF50™/PF60™ CAPTIVE PANEL SCREWS
•
•
•
•

Low-profile design satisfies many functional and cosmetic requirements.
Convenient large head for tool or finger operation.
PF50/PF60 are available with Torx® recess.
PF50/PF60 are available with MAThread® anti cross-thread
technology. (See page 4 for more information).

PF30

Knurled Cap

PF30™ LOW-PROFILE CAPTIVE PANEL SCREWS

Material:
Retainer: Carbon Steel
Screw: Hardened Carbon Steel (#4-40 and M3 sizes only)
		
Carbon Steel (all other sizes)
Spring: 300 Series Stainless Steel
Finish:
Retainer: CN - Bright nickel over copper flash per ASTM B689
Screw: CN - Bright nickel over copper flash per ASTM B689
Spring: Natural Finish
Optional Finish:
Retainer: BN - Black nitride, AMS2753, Section 3
Screw: BN - Black nitride, AMS2753, Section 3

E

Shoulder
provides
positive
stop during
installation.

T2

PF60

Smooth Cap

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)

Diagonal knurl and
groove on retainer
identifies metric
thread sizes.

Available with
DuraBlackTM finish
(Finish Code “BN”)

PF50

Knurled Cap

H

For use in sheet hardness:
HRB 60 or less (Hardness Rockwell “B” Scale)
HB 107 or less (Hardness Brinell)

T1

PART NUMBER DESIGNATION
C

PF30

G

A

–

832

–

30

CN

Screw
Length Code

Finish
Code

Clinching profile may vary.

Installation Data page 31. Performance Data page 38.

Type and
Shank Code

UNIFIED

All dimensions are in inches.

Thread Size
Code

Type

Thread
Code

Screw
Length
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ .003
- .000

C
Max.

E
±.010

G
± .015

H
± .005

T1
Max.

T2
Nom.

Min. Dist.
HoleC/L
To Edge

.112-40
(#4-40)

PF30
PF31
PF32

440

30

.030
.038
.058

.030
.040
.060

.203

.202

.406

.300

.202

.325

.595

.26

.138-32
(#6-32)

PF30
PF31
PF32

632

30

.030
.038
.058

.030
.040
.060

.219

.218

.438

.300

.202

.325

.595

.28

.164-32
(#8-32)

PF30
PF31
PF32

832

30

.030
.038
.058

.030
.040
.060

.250

.249

.468

.300

.207

.330

.600

.29

.190-32
(#10-32)

PF30
PF31
PF32

032

30

.030
.038
.058

.030
.040
.060

.312

.311

.530

.300

.220

.335

.605

.33

.250-20
(1/4-20)

PF32

0420

35

.058

.060

.375

.374

.625

.350

.242

.385

.675

.38

Thread
Size

METRIC

All dimensions are in millimeters.

Thread
Size x
Pitch

Type

Thread
Code

Screw
Length
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ 0.08

C
Max.

E
±0.25

G
± 0.4

H
± 0.13

T1
Max.

T2
Nom.

Min. Dist.
HoleC/L
To Edge

M3 x 0.5

PF31
PF32

M3

30

0.97
1.48

1
1.5

5.5

5.48

10.31

7.62

5.13

8.26

15.11

6.6

M4 x 0.7

PF31
PF32

M4

30

0.97
1.48

1
1.5

6.4

6.38

11.89

7.62

5.26

8.38

15.24

7.37

M5 x 0.8

PF31
PF32

M5

30

0.97
1.48

1
1.5

8

7.98

13.46

7.62

5.59

8.51

15.37

8.38

M6 x 1

PF32

M6

35

1.48

1.5

9.5

9.48

15.88

8.89

6.12

9.78

17.15

9.65

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.

PF-12 PennEngineering • www.pemnet.com

PEM® PF30™/PF50™/PF60™ CAPTIVE PANEL SCREWS
PF50™ AND PF60™ LOW-PROFILE CAPTIVE PANEL
SCREWS

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Knob: Carbon Steel
Screw: Carbon Steel

Groove on retainer and dimples on
head designate metric thread.

Available with
DuraBlackTM finish
(Finish Code “BN”)

Finish:
Knob: CN - Bright nickel over copper flash per ASTM B689
Retainer: CN - Bright nickel over copper flash per ASTM B689
Screw: CN - Bright nickel over copper flash per ASTM B689
Spring: Natural Finish

Phillips
driver size.

Optional Finish:
Knob: BN - Black Nitride, AMS2753, Section 3
Retainer: BN - Black Nitride, AMS2753, Section 3
Screw: BN - Black Nitride, AMS2753, Section 3

(See chart)

E
Shoulder
provides
positive
stop during
installation.

T2

H

For use in sheet hardness:
HRB 60 or less (Hardness Rockwell “B” Scale)
HB 107 or less (Hardness Brinell)

T1

PART NUMBER DESIGNATION
C

P

PF50
PF60

G

A

All dimensions are in inches.
Type
Thread
Knurled
Smooth
Size
Cap
Cap
PF50
PF60

UNIFIED

.138-32
(#6-32)

.164-32
(#8-32)

.190-32
(#10-32)
.250-20
(1/4-20)

PF51

–
–

440
440

–
–

1
1

CN
CN

Screw
Length Code

Finish
Code

Clinching profile may vary.

Installation Data page 31. Performance Data page 39.

.112-40
(#4-40)

Retainer: Carbon Steel
Spring: 300 Series Stainless Steel

Thread
Code
440

PF61

440

PF52

PF62

440

PF50

PF60

632

PF51

PF61

632

PF52

PF62

632

PF50

PF60

832

PF51

PF61

832

PF52

PF62

832

PF50

PF60

032

PF51

PF61

032

PF52

PF62

032

PF52

PF62

0420

Type and
Shank Code

Screw
Length
Code
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1

A
(Shank)
Max.
.030

Min.
Sheet
Thickness
.030

Hole Size
In Sheet
+ .003 -.000
.203

C
Max.
.202

E
+.015
–.005
.406

.038

.040

.203

.202

.406

Screw
Length
Code
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1

.058

.060

.203

.202

.406

.030

.030

.219

.218

.438

.038

.040

.219

.218

.438

.058

.060

.219

.218

.438

.030

.030

.250

.249

.468

.038

.040

.250

.249

.468

.058

.060

.250

.249

.468

.030

.030

.312

.311

.530

.038

.040

.312

.311

.530

.058

.060

.312

.311

.530

.058

.060

.375

.374

.625

A
(Shank)
Max.
0.77

Min.
Sheet
Thickness
0.8

Hole Size
In Sheet
+ 0.08
5.5

C
Max.
5.48

E
+0.4
–0.13
10.3

0.97

1

5.5

5.48

10.3

G
±.025
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.230
.290
.280
.340

H
±.008
.207

G
±0.64
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
5.84
7.37
7.11
8.64

H
±0.2
5.26

.207
.207
.207
.207
.207
.217
.217
.217
.225
.225
.225
.246

Thread Size
Code
P
±.025
.000
.060
.000
.052
.000
.032
.000
.060
.000
.052
.000
.032
.000
.060
.000
.052
.000
.032
.000
.060
.000
.052
.000
.032
.000
.060

T1
Max.
.340

T2
Nom.
.520

Driver
Size
#1

Min. Dist
HoleC/L
To Edge
.26

.340

.520

#1

.26

.340

.520

#1

.26

.340

.520

#2

.28

.340

.520

#2

.28

.340

.520

#2

.28

.340

.520

#2

.29

.340

.520

#2

.29

.340

.520

#2

.29

.340

.530

#2

.33

.340

.530

#2

.33

.340

.530

#2

.33

.395

.600

#2

.38

T1
Max.
8.64

T2
Nom.
13.21

Driver
Size
#1

Min. Dist
HoleC/L
To Edge
6.6

8.64

13.21

#1

6.6

All dimensions are in millimeters.
Thread
Size x
Pitch

METRIC

M3 x 0.5

M3.5 x 0.6

M4 x 0.7

M5 x 0.8

M6 x 1

Knurled
Cap
PF50
PF51

Type

Smooth
Cap
PF60

Thread
Code
M3

PF61

M3

PF52

PF62

M3

PF50

PF60

M3.5

PF51

PF61

M3.5

PF52

PF62

M3.5

PF50

PF60

M4

PF51

PF61

M4

PF52

PF62

M4

PF50

PF60

M5

PF51

PF61

M5

PF52

PF62

M5

PF52

PF62

M6

1.48

1.5

5.5

5.48

10.3

0.77

0.8

5.56

5.54

11.1

0.97

1

5.56

5.54

11.1

1.48

1.5

5.56

5.54

11.1

0.77

0.8

6.4

6.38

11.9

0.97

1

6.4

6.38

11.9

1.48

1.5

6.4

6.38

11.9

0.77

0.8

8

7.98

13.5

0.97

1

8

7.98

13.5

1.48

1.5

8

7.98

13.5

1.48

1.5

9.5

9.48

15.9

5.26
5.26
5.26
5.26
5.26
5.51
5.51
5.51
5.72
5.72
5.72
6.25

P
±0.64
0
1.52
0
1.32
0
0.81
0
1.52
0
1.32
0
0.81
0
1.52
0
1.32
0
0.81
0
1.52
0
1.32
0
0.81
0
1.52

8.64

13.21

#1

6.6

8.64

13.21

#2

7.1

8.64

13.21

#2

7.1

8.64

13.21

#2

7.1

8.64

13.46

#2

7.4

8.64

13.46

#2

7.4

8.64

13.46

#2

7.4

8.64

13.46

#2

8.4

8.64

13.46

#2

8.4

8.64

13.46

#2

8.4

10.04

15.24

#2

9.7

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
PennEngineering • www.pemnet.com PF-13

PEM® PFC4™/PFC2P™ CAPTIVE PANEL SCREWS
•
•
•
•

PFC4/PFC2P have fully concealed-head for tool only access.
PFC4/PFC2P comply with UL 60950 standards.
PFC4 installs into stainless steel sheets HRB 88 or less.
PFC4/PFC2P are available with MAThread® anti cross-thread technology.
(See page 4 for more information).
• PFC4/PFC2P available with Torx® recess.

PFC4

PFC2P

PFC4™ RECESSED-HEAD CAPTIVE PANEL SCREWS
TO
S IN
L
ALL STEE
T
S
S
IN
LES
N
I
STA

Phillips
driver size.

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g

Dimples on head
designates metric
thread.

Material:
Retainer: 400 Series Stainless Steel
Screw: 400 Series Stainless Steel
Spring: 300 Series Stainless Steel
Retaining Ring: Nylon, temperature limit 200˚ F / 93˚ C

(See chart)

E
Shoulder
provides
positive
stop during
installation.

Finish:
Retainer: Passivated and/or tested per ASTM A380
Screw: Passivated and/or tested per ASTM A380
Spring: Natural Finish

T2

For use in sheet hardness:
HRB 88 or less (Hardness Rockwell “B” Scale)
HB 183 or less (Hardness Brinell)

T1

P

PEM
Trademark
Blue plastic
retaining ring.

G

PART NUMBER DESIGNATION
PFC4

A

C

Clinching profile may vary.

–

Type and
Material

Installation Data page 32. Performance Data page 39.

832
Thread Size
Code

–

50
Screw Length
Code

UNIFIED

All dimensions are in inches.

Thread
Size

Type

Thread
Code

.112-40
(#4-40)

PFC4

440

.138-32
(#6-32)

PFC4

632

.164-32
(#8-32)

PFC4

832

.190-32
(#10-32)

PFC4

032

Screw
Length
Code
40
62
40
62
84
50
72
94
50
72
94

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ .003
- .000

C
Max.

E
± .010

.060

.060

.265

.264

.344

.060

.060

.281

.280

.375

.060

.060

.312

.311

.406

.060

.060

.344

.343

.437

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ 0.08

C
Max.

E
± 0.25

1.53

1.53

6.73

6.71

8.74

1.53

1.53

7.92

7.9

10.31

1.53

1.53

8.74

8.72

11.1

G
± .016

P
±.025

.250
.375
.250
.375
.500
.312
.437
.562
.312
.437
.562

.000
.125
.000
.125
.250
.000
.125
.250
.000
.125
.250

G
± 0.4

P
±0.64

6.4
9.5
7.9
11.1
14.3
7.9
11.1
14.3

0
3.2
0
3.2
6.4
0
3.2
6.4

T1
Max.

T2
Nom.

Driver
Size

Min. Dist.
HoleC/L
To Edge

.370

.540

#1

.25

.380

.540

#2

.28

.480

.705

#2

.31

.490

.705

#2

.34

T1
Max.

T2
Nom.

Driver
Size

Min. Dist
HoleC/L
To Edge

9.4

13.72

#1

6.35

12.19

17.91

#2

7.87

12.45

17.91

#2

8.63

METRIC

All dimensions are in millimeters.

Thread
Size
x Pitch

Type

Thread
Code

M3 x 0.5

PFC4

M3

M4 x 0.7

PFC4

M4

M5 x 0.8

PFC4

M5

Screw
Length
Code
40
62
50
72
94
50
72
94

A NOTE ABOUT FASTENERS FOR STAINLESS STEEL PANELS
In order for self-clinching fasteners to work properly, the fastener must be harder than the sheet into which it is being installed. In the case of stainless steel panels,
fasteners made from 300 Series Stainless Steel do not meet this hardness criteria. It is for this reason that 400 series fasteners are offered (PFC4). However, while
these 400 Series fasteners install and perform well in 300 Series stainless sheets they should not be used if the end product:
• Will be exposed to any appreciable corrosive presence.
• Requires non-magnetic fasteners.
• Will be exposed to any temperatures above 300˚F (149˚C)
If any of the these are issues, please contact techsupport@pemnet.com for other options.

PF-14 PennEngineering • www.pemnet.com

PEM® PFC4™/PFC2P™ CAPTIVE PANEL SCREWS
PFC2P™ RECESSED-HEAD CAPTIVE PANEL SCREWS
Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g

Phillips
driver size.

Material:
Retainer: 300 Series Stainless Steel
Screw: 400 Series Stainless Steel
Spring: 300 Series Stainless Steel
Retaining Ring: Nylon, temperature limit 200˚ F / 93˚ C

(See chart)

Available with
DuraBlackTM finish
(Finish Code “BN”)

Dimples on head
designates metric
thread.

E
Shoulder
provides
positive
stop during
installation.

Finish:
Retainer: Passivated and/or tested per ASTM A380
Screw: Passivated and/or tested per ASTM A380
Spring: Natural Finish
Optional Finish:
Retainer: BN - Black nitride, AMS2753, Section 3
Screw: BN - Black nitride, AMS2753, Section 3

T2
T1

P

G

PEM
Trademark
Blue plastic
retaining ring.

For use in sheet hardness:
HRB 70 or less (Hardness Rockwell “B” Scale)
HB 125 or less (Hardness Brinell)

PART NUMBER DESIGNATION
PFC2P

A

C

–

832

–

50

Clinching profile may vary.

Installation Data page 32. Performance Data page 39.

Type and
Material

UNIFIED

All dimensions are in inches.

Thread Size
Code

Screw
Length Code

Thread
Size

Type

Thread
Code

Screw
Length
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ .003
- .000

C
Max.

E
± .010

G
± .016

P
±.025

T1
Max.

T2
Nom.

Driver
Size

Min. Dist.
HoleC/L
To Edge

.112-40
(#4-40)

PFC2P

440

40
62

.060

.060

.265

.264

.312

.250
.375

.000
.125

.370

.540

#1

.25

.138-32
(#6-32)

PFC2P

632

40
62
84

.060

.060

.281

.280

.344

.250
.375
.500

.000
.125
.250

.380

.540

#2

.28

.164-32
(#8-32)

PFC2P

832

50
72
94

.060

.060

.312

.311

.375

.312
.437
.562

.000
.125
.250

.480

.705

#2

.31

.190-32
(#10-32)

PFC2P

032

50
72
94

.060

.060

.344

.343

.406

.312
.437
.562

.000
.125
.250

.490

.705

#2

.34

.250-20
(1/4-20)

PFC2P

0420

60
82
04

.060

.060

.413

.412

.468

.375
.500
.625

.000
.125
.250

.620

.905

#3

.38

METRIC

All dimensions are in millimeters.

Thread
Size x
Pitch

Type

Thread
Code

Screw
Length
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ 0.08

C
Max.

E
± 0.25

G
± 0.4

P
±0.64

T1
Max.

T2
Nom.

Driver
Size

Min. Dist
HoleC/L
To Edge

M3 x 0.5

PFC2P

M3

40
62

1.53

1.53

6.73

6.71

7.92

6.4
9.5

0
3.2

9.4

13.72

#1

6.35

M4 x 0.7

PFC2P

M4

50
72
94

1.53

1.53

7.92

7.9

9.53

7.9
11.1
14.3

0
3.2
6.4

12.19

17.91

#2

7.87

M5 x 0.8

PFC2P

M5

50
72
94

1.53

1.53

8.74

8.72

10.31

7.9
11.1
14.3

0
3.2
6.4

12.45

17.91

#2

8.63

M6 x 1

PFC2P

M6

60
82
04

1.53

1.53

10.49

10.47

11.89

9.5
12.7
15.9

0
3.2
6.4

15.75

22.99

#3

9.65

PennEngineering • www.pemnet.com PF-15

PEM® PFC2™/PFS2™ CAPTIVE PANEL SCREWS
PFC2

PFC2/PFS2

PFS2 is available with
DuraBlackTM finish
(Finish Code “BN”)

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g
Material:
Retainer: 300 Series Stainless Steel (2)
Screw: 300 Series Stainless Steel
Spring: 300 Series Stainless Steel
Retaining Ring: Nylon, temperature limit 200˚ F / 93˚ C
Finish:
Retainer: Passivated and/or tested per ASTM A380
Screw: Passivated and/or tested per ASTM A380
Spring: Natural Finish
Optional Finish:
Retainer: BN - Black nitride, AMS2753, Section 3
Screw: BN - Black nitride, AMS2753, Section 3
For use in sheet hardness:
HRB 70 or less (Hardness Rockwell “B” Scale)
HB 125 or less (Hardness Brinell)
Diagonal knurl identifies
metric thread sizes.

E

Shoulder
provides
positive
stop during
installation.

T1

G

PEM Trademark
Blue plastic
retaining ring

PFC2

–

832

–

50

PFS2

–

832

–

50

Type and
Material

Thread Size
Code

A

C

Type

Thread
Code

Stainless
Steel

Steel

.112-40
(#4-40)

PFC2

PFS2

440

.138-32
(#6-32)

PFC2

PFS2

632

.164-32
(#8-32)

PFC2

PFS2

832

.190-32
(#10-32)

PFC2

PFS2

032

.250-20
(1/4-20)

PFC2

PFS2

0420

Screw
Length
Code
40
62
40
62
84
50
72
94
50
72
94
60
82
04

CN

Screw Finish
Length Code
Code

Installation Data page 33. Performance Data page 39.

Clinching profile may vary.

All dimensions are in inches.

UNIFIED

PART NUMBER DESIGNATION

H

T2

P

Thread
Size

PFS2

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Retainer: Hardened Carbon Steel (2)
Screw: Carbon Steel
Spring: 300 Series Stainless Steel
Retaining Ring: Nylon, temperature limit 200˚ F / 93˚ C
Finish:
Retainer: CN - Bright nickel over copper flash per ASTM B689
Screw: CN - Bright nickel over copper flash per ASTM B689
Spring: Natural Finish
Optional Finish:
Retainer: BN - Black nitride, AMS2753, Section 3
Screw: BN - Black nitride, AMS2753, Section 3
For use in sheet hardness:
HRB 80 or less (Hardness Rockwell “B” Scale)
HB 150 or less (Hardness Brinell)

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ .003
- .000

C
Max.

E
± .010

.060

.060

.265

.264

.312

.060

.060

.281

.280

.344

.060

.060

.312

.311

.375

.060

.060

.344

.343

.406

.060

.060

.413

.412

.468

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ 0.08

C
Max.

E
±.25

1.53

1.53

6.73

6.71

7.92

1.53

1.53

7.92

7.9

9.53

1.53

1.53

8.74

8.72

10.31

1.53

1.53

10.49

10.47

11.89

G
±.016
.250
.375
.250
.375
.500
.312
.437
.562
.312
.437
.562
.375
.500
.625

H
±.005
.072
.072

.082

.082

.097

P
±.025
.000
.125
.000
.125
.250
.000
.125
.250
.000
.125
.250
.000
.125
.250

T1
Max.

T2
Nom.

Min. Dist.
HoleC/L
To Edge

.360

.540

.25

.360

.540

.28

.450

.690

.31

.450

.690

.34

.580

.880

.38

T1
Max.

T2
Nom.

Min. Dist.
HoleC/L
To Edge

9.14

13.72

6.35

11.43

17.53

7.87

11.47

17.53

8.63

14.73

22.35

9.65

All dimensions are in millimeters.

METRIC

Thread
Size x
Pitch

Type

Thread
Code

Stainless
Steel

Steel

M3 x 0.5

PFC2

PFS2

M3

M4 x 0.7

PFC2

PFS2

M4

M5 x 0.8

PFC2

PFS2

M5

M6 x 1

PFC2

PFS2

M6

Screw
Length
Code
40
62
50
72
94
50
72
94
60
82
04

G
± 0.4
6.4
9.5
7.9
11.1
14.3
7.9
11.1
14.3
9.5
12.7
15.9

H
± 0.13
1.83
2.08

2.08

2.46

P
±0.64
0
3.2
0
3.2
6.4
0
3.2
6.4
0
3.2
6.4

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) The blue plastic retaining rings are a PEM trademark. The temperature limit is 200° F / 93° C.

PF-16 PennEngineering • www.pemnet.com

PEM® PTL2™/PSL2™ SPRING-LOADED PLUNGER ASSEMBLIES
•
•
•
•
•
•

Used as positioning pins for sliding components such as drawer slides and equipment consoles.
Fast installation and removal of components.
Reverse side of sheet is flush when plunger is retracted.
PTL2 has quick lockout feature to hold plunger in fully retracted position.
For use in sheets of HRB 80 or less.
Available as PSL2 without lockout feature on special order.

Material:
Plunger: Hardened Carbon Steel
Retainer: Hardened Carbon Steel
Spring: 300 Series Stainless Steel

PTL2/PSL2 installed and with
mating panel. Minimum mating
hole diameter .251” / 6.38 mm.

Finish:
Plunger: CN - Bright nickel over copper flash per ASTM B689
Retainer: CN - Bright nickel over copper flash per ASTM B689
Spring: Natural Finish

Lockout feature holds
plunger in retracted
position. Simply
retract and twist
to engage lockout
feature.
Shoulder
provides
positive
stop during
installation.

For use in sheet hardness:
HRB 80 or less (Hardness Rockwell “B” Scale)
HB 150 or less (Hardness Brinell)

E1
T2

H

PART NUMBER DESIGNATION

T1

PTL2

E2

C

G

A

Clinching profile may vary.

–

Type

D

04

–

4

CN

Plunger
Diameter
Code

Plunger
Length
Code

Finish
Code

Installation Data page 33. Performance Data page 39.

UNIFIED

All dimensions are in inches.

Type

Plunger
Diameter
Code

Plunger
Length
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+.003 -.000

C
Max.

D
+ .000
- .005

E1
± .010

E2
± .010

G
± .010

H
± .010

T1
± .010

T2
Nom.

Min. Dist.
HoleC/L
To Edge

PTL2

04

4

.058

.060

.328

.327

.250

.50

.406

.310

.17

.595

.895

.34

PSL2 (1)

04

4

.058

.060

.328

.327

.250

.50

.406

.310

.17

.510

.780

.34

METRIC

All dimensions are in millimeters.

Type

Plunger
Diameter
Code

Plunger
Length
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ 0.08

C
Max.

D
- 0.13

E1
± 0.25

E2
± 0.25

G
± 0.25

H
± 0.25

T1
± 0.25

T2
Nom.

Min. Dist.
HoleC/L
To Edge

PTL2

04

4

1.47

1.53

8.33

8.31

6.35

12.7

10.3

7.87

4.32

15.11

22.73

8.64

PSL2 (1)

04

4

1.47

1.53

8.33

8.31

6.35

12.7

10.3

7.87

4.32

12.95

19.81

8.64

(1) Without lockout feature. Available on special order.

PennEngineering • www.pemnet.com PF-17

PEM® SCBR™/SCB™/SCBJ™ CAPTIVE PANEL SCREWS
•
•
•
•

Permanently captivates into sheets as thin as .040” / 1.02 mm and greater.
Lowest cost captive screw design to replace loose hardware.
Available with self-retracting (SCBR), axial float (SCB), or jacking feature (SCBJ).
Appropriate for close centerline-to-edge applications.
SCB

SCBR

SCBJ

SCBR™ SPINNING CLINCH BOLT WITH SELF-RETRACTING FEATURE
SCBR retracted

SCBR engaged

Phillips
driver size.
(See chart)

E
Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Screw - Hardened Carbon Steel
Spring - 300 series stainless steel

H2
H1

L

Finish:
Screw - ZI - Zinc plated, 5µm, colorless (standard) (2)
Spring: Natural Finish
For use in sheet hardness:
HRB 80 or less (Hardness Rockwell “B” Scale)
HB 150 or less (Hardness Brinell)

PART NUMBER DESIGNATION
SCBR

T

Installation Data page 34. Performance Data page 40.

– 632

Type

Thread
Size
Code

UNIFIED

All dimensions are in inches.

		
		 Length Code “L” ±.015
(Length Code in 16ths of an inch)
Thread		
Thread
Size
Type
Code
.500
.112-40
SCBR
440
8
(#4-40)
.138-32
SCBR
632
8
(#6-32)
.164-32
SCBR
832
8
(#8-32)

–

8

ZI

Length Finish
Code

Min.
Sheet
Thickness

Hole Size
in Sheet
+.003 –.000

E					
H2
T
Driver
+.005
H1
–.010
±.005
Ref.
Nom.
Size

Min. Dist
Hole C/L
To Edge

.040

.112

.348

.165

.495

.130

#1

.175

.040

.138

.381

.170

.500

.130

#2

.190

.040

.164

.410

.175

.505

.130

#2

.205

Min.
Sheet
Thickness

Hole Size
in Sheet
+0.08

METRIC

All dimensions are in millimeters.

Thread
			
Length Code “L” ±0.4
Size x		
Thread
Pitch
Type
Code
(Length Code in millimeters)

E					
+0.13
H1
H2
T
Driver
–0.25
±0.13
Ref.
Nom.
Size

Min. Dist
Hole C/L
To Edge

M3 x 0.5

SCBR

M3

12

1.02

3

9.1

4.2

11.8

3.3

#1

4.5

M4 x 0.7

SCBR

M4

12

1.02

4

10.7

4.5

12.1

3.3

#2

5.4

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.
NOTE: SCBR screws are shipped with mating springs.
For designs requiring a specific spring rate, contact our PEM Technical Support group at techsupport@pemnet.com.

PF-18 PennEngineering • www.pemnet.com

PEM® SCBR™/SCB™/SCBJ™ CAPTIVE PANEL SCREWS
SCB™/SCBJ™ SPINNING CLINCH BOLTS
SCB with
axial float.
SCBJ with
jacking feature.

SCBJ
Phillips
driver size.

T

(See chart)

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Hardened Carbon Steel
L

H

Finish:
ZI - Zinc plated, 5µm, colorless (standard) (2)

E

SCB

For use in sheet hardness:
HRB 80 or less (Hardness Rockwell “B” Scale)
HB 150 or less (Hardness Brinell)

Phillips
driver size.

T

(See chart)

PART NUMBER DESIGNATION
SCB

L

Type

E

H

J – 632

Jacking
(If applicable)

Installation Data page 34. Performance Data page 40.

–

Thread
Size
Code

6

Length
Code

ZI

Finish

UNIFIED

All dimensions are in inches.

Thread
Size

Type
Jacking

Non-jacking

.112-40
(#4-40)

SCBJ

—

—

SCB

.138-32
(#6-32)

SCBJ

—

—

SCB

Thread
Code

440

632

Length Code “L” ±.015
(Length Code in 16ths of an inch)
.250

.375

.500

4

6

8

—

—

8

4

6

8

—

—

8

Min.
Sheet
Thickness

Hole Size
in Sheet
+.003 –.000

E
±.010

H
Nom.

.040

.112

.250

.080

.040

.138

.291

.080

Hole Size
in Sheet
+0.08

E
±0.25

H
Nom.

1.02

3

6.6

2.03

1.02

4

8.28

2.03

–4

T		
Nom.
Nom.		 Axial
Float
–6
–8

.160

.285

.410

—

—

—

.130

.330

.160

.285

.410

—

—

—

.130

.330

T
		
Nom. 		

Nom.
Axial
Float

Driver
Size

Min. Dist.
HoleC/L
To Edge

#1

.13

#2

.15

Driver
Size

Min. Dist.
HoleC/L
To Edge

#1

3.3

#2

5

METRIC

All dimensions are in millimeters.

Thread
Size x
Pitch
M3 x 0.5

M4 x 0.7

Type
Jacking

Non-jacking

SCBJ

—

—

SCB

SCBJ

—

—

SCB

		
Min.
Length Code “L” 		
±0.4
Sheet
(Length Code in millimeters)
Thickness
		

Thread
Code

M3

M4

6

10

12

14

—

—

12

14

6

10

12

14

—

—

12

14

–6

–10

–12

-14

3.7
—

7.7

9.7

11.7

—

—

3.3

5.3

7.67

3.7

7.7

9.7

11.7

—

—

—

3.3

5.3

7.67

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.

PennEngineering • www.pemnet.com PF-19

PEM® HSCB™ HEAT SINK MOUNTING SYSTEM
The new HSCB™ engineered mounting system provides secure attachment of a heat sink to the circuit board while providing firm
contact to the chip component allowing optimum heat dissipation. The three-piece fastening system, sold individually, includes the
screw, spring and receptacle nut. The clamp load created is determined
by the spring rate and the amount of deflection that is designed into
the joint of the hardware. The system also allows for slight expansion
and contraction of the joint components without stress to the delicate
circuitry. The unique “click” feature lets the user know when the
fastener is completely installed.

NEW

!

G

HSR

To select proper length code of nut/standoff:

Patented

HSL

HSCB

• Screw can not be overtightened. Audible “click” when fully
engaged.
• Screw and spring mount together permanently into the heat
sink.
• Spring determines clamp force.
• Receptacle nut mounts permanently to the PC board.
• Provides even, constant contact of heat sink to chip
component.
• Allows removal of heat sink if desired.

1) Determine “G”, the distance from the top surface of the heat sink to
the top of the P.C. Board.
2) Find the combination of Screw (HSCB) and Nut (HSR) whose sum of
Screw Factor (SF) plus Nut Factor (NF) are closest to G.
3) Find D = G – SF – NF. The D value must be a negative number
between zero and 1mm or 1/32” (1 dash length of HSR nut).
4) The actual working load is equal to the Spring (HSL) Working Load
+ (D x spring rate k). Lower D value results in lower force.
If this or any standard product does not meet your application
needs, contact our PEM Technical Support group at
techsupport@pemnet.com to develop a special product that
matches your specific application.

HSCB™ SELF-CAPTIVATING SCREW

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)

Phillips
driver size.

Material:
Hardened carbon steel

(See chart)

ES

Finish:
Screw - ZI - Zinc plated, 5µm, colorless (2)
For use in sheet hardness:
HRB 80 / HB150 or less (3)

H2

PART NUMBER DESIGNATION

H1

HSCB

–

440

–

4

ZI

Length
Code

Finish

L
TS

Type

Installation Data page 35.
Performance Data page 40.

Thread
Size
Code

UNIFIED

All dimensions are in inches.

		
		
Length Code “L” ±.015
Thread		
Thread
Size
Type
Code
.320
.112-40
HSCB
440
4
(#4-40)
.138-32
HSCB
632
4
(#6-32)

Min.
Sheet
Thickness

Hole Size					
H1
H2
TS
in Sheet
ES
+.003 –.000
±.010
Ref.
Ref.
Min.

Screw		
Factor
Driver
(SF)
Size

Min. Dist
HoleC/L
To Edge

.040

.112

.312

.300

.470

.130

.170

#1

.156

.040

.138

.352

.300

.470

.130

.170

#2

.178

METRIC

All dimensions are in millimeters.

Thread
		
Length Code “L” ±0.4
Size x		
Thread
Pitch
Type
Code
8.13
M3 x 0.5

HSCB

M3

3

Min.
Sheet
Thickness
1

Hole Size					
H1
H2
TS
in Sheet
ES
+0.08
±0.25
Ref.
Ref.
Min.
3

8.18

7.67

12

3.3

Screw		
Factor Driver
(SF)
Size
4.32

#1

Min. Dist
HoleC/L
To Edge
4.13

NOTE: HSCB screws, HSR nuts and HSL springs are sold separately.

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.
(3) HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.

PF-20 PennEngineering • www.pemnet.com

PEM® HSCB™ HEAT SINK MOUNTING SYSTEM
HSR™ BROACHING NUT/STANDOFF

Threads:
Internal, ASME B1.1, 2B / ASME B1.13M, 6H
Material:
Carbon steel

F

Finish:
ET - Electro-plated tin ASTM B 545, class B
with clear preservative coating, annealed (1)
For use in sheet hardness:
HRB 60 / HB 107 or less (2)

C

A

TN

HSR nuts are available for
surface mounting. Contact our
PEM technical support group at
techsupport@pemnet.com.

EN

Installation Data page 35. Performance Data page 40.

PART NUMBER DESIGNATION
HSR

Type

–

440

–

Thread
Size
Code

2

ET

Length
Code

Finish

UNIFIED

All dimensions are in inches.

					
A
Thread		Thread
Length
(Shank)
Size
Type
Code
Code
Max.

Min.
Sheet
Thickness

Hole Size					
Nut
F
TN
Factor
In Sheet
C
EN
+.003 –.000
±.003
±.005
±.010
±.005
(NF)

2
.065
.112-40
HSR
440
.060
.060
.166
.184
.219
.060
(#4-40)			3							
.093

.000

2
.065
.138-32
HSR
632
.060
.060
.213
.231
.281
.060
(#6-32)			3							
.093

.000

.031
.031

Min. Dist.
HoleC/L
To Edge
0.17
0.22

METRIC

All dimensions are in millimeters.

Thread				
A
Size x		
Thread
Length
(Shank)
Pitch
Type
Code
Code
Max.

Min.
Sheet
Thickness

Hole Size					
F
TN
In Sheet
C
EN
+0.08
±0.08
±0.13
±0.25
±0.13

Nut
Factor
(NF)

2
2
M3 x 0.5
HSR
M3
1.53
1.53
4.22
4.68
5.56
1.3
				
3							3

.75
1.75

Min. Dist.
HoleC/L
To Edge
4.4

NOTE: HSCB screws, HSR nuts and HSL springs are sold separately.
(1) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.
(2) HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.

Spring I.D.
Min.

HSL™ SPRINGS
HSL springs are engineered to provide a reliable and repeatable spring rate when
assembled with mating PEM hardware. The spring rate is critical to the successful
assembly of your heat sink. Clamp load will be determined by the spring rate and
deflection that is designed into the joint.
Part
Number

Minimum
Inside Dia.
(in.)

(mm)

Load at
Working Height ±10%
(lbs.)

(N)

Working
Height Ref.
(in.)

(mm)

Spring Rate
k
(lb/in)

(N/mm)

Spring
Material

Working Height

17-7 Stainless Steel,
HSL-574-35
.226
5.74
7.87
35
.270
6.86
74
12.96
										 Natural Finish
17-7 Stainless Steel,
HSL-701-35
.276
7.01
7.87
35
.270
6.86
39
6.84
										 Natural Finish

NOTE: HSCB screws, HSR nuts and HSL springs are sold separately. HSL-574-35 spring fits screw
thread sizes #4-40 and M3 and HSL-701-35 spring fits screw thread size #6-32.
The HSL Inside Diameter Code is expressed in hundredths of millimeters.
Example “574” indicates a minimum inside diameter of 5.74mm or .226”.
The HSL Load Code is expressed in Newtons developed at the working height of the spring
once the joint is assembled.
Example “35” indicates working load of 35 Newtons, or approximately 8 lbs.
For designs requiring a specific spring rate, contact our PEM Technical Support group at
techsupport@pemnet.com

PART NUMBER DESIGNATION
HSL

Type

–

574

Inside
Diameter
Code

– 35

Load
Code

PennEngineering • www.pemnet.com PF-21

PEM® PF10™ FLUSH-MOUNTED CAPTIVE PANEL SCREWS
•
•
•
•
•

PF10 assembly sits flush in sheets as thin as .050” / 1.27 mm or flush on both sides in .125” / 3.2 mm sheets.
PS10 screw remains captive in retainer when disengaged.
PR10 retainer and F10 receptacle nut is for use in sheets of HRB 70 or less.
N10 nut is for use in sheets of HRB 80 or less.
Complies with UL 60950 standards.
PS10 Screw

M

B

G

T
N10 Receptacle Nut

Manually
Retracted
Position

PR10 Retainer

PR10 A
Retainer

P

N10
Receptacle
Nut

PS10 Screw

Installation Data page 36. Performance Data page 41.

Floating Receptacle Nuts
UNIFIED

All dimensions are in inches.

A
Min.

B
Nom.

.04

.125

G
M
P
± .010			
.40

.16

.28

.13

Flush Fasteners as retainers

All dimensions are in millimeters.
METRIC

Available on special order
F10 self-clinching floating
receptacle nuts permit a
minimum of .015”/0.38mm
adjustment for mating hole
misalignment.

T
Nom.

A
Min.

B
Nom.

G
M
P
± 0.25			

T
Nom.

1

3.18

10.16

3.3

4.06

7.11

For applications where the
screw head may project
above the sheet surface,
PS10 screws may be used
with PEMSERT® F fasteners
as retainers. For dimensions
and engineering data on F
fasteners, see PEM Bulletin F.

PS10™ FLUSH MOUNTED SCREWS

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g
Material:
300 Series Stainless Steel

E
Diagonal knurl
identifies metric
thread sizes.

PS10 Screw

Finish:
Passivated and/or tested per ASTM A380

H

PART NUMBER DESIGNATION
PS10

L
T

Type and
Material

832

Thread Size
Code

–

40

Screw
Length
Code

All dimensions are in millimeters.

Thread
Size

Type

Thread
Code

Screw
Length
Code

E
Nom.

H
+ .002
- .006

L
± .010

T
Nom.

.112-40
(#4-40)

PS10

440

40

.18

.075

.33

.13

.138-32
(#6-32)

PS10

632

40

.21

.075

.33

.13

.164-32
(#8-32)

PS10

832

40

.25

.075

.33

.13

.190-32
(#10-32)

PS10

032

40

.28

.075

.33

.13

PF-22 PennEngineering • www.pemnet.com

METRIC

UNIFIED

All dimensions are in inches.

–

Thread
Size x
Pitch

Type

Thread
Code

Screw
Length
Code

E
Nom.

H
+ 0.05
- 0.15

L
± 0.25

T
Nom.

M3 x 0.5

PS10

M3

40

4.7

1.91

8.38

3.3

M4 x 0.7

PS10

M4

40

6.3

1.91

8.38

3.3

M5 x 0.8

PS10

M5

40

7.1

1.91

8.38

3.3

PEM® PF10™ FLUSH-MOUNTED CAPTIVE PANEL SCREWS
PR10™ SELF-CLINCHING FLUSH-MOUNTED RETAINERS
E

PR10
Retainer

PART NUMBER DESIGNATION

B

PR10

H

–

832

A

Type

Thread Size
Code

Clinching profile may vary.

C

Threads:
Internal, ASME B1.1, 2B / ASME B1.13M, 6H (1)
Material:
300 Series Stainless Steel
Finish:
Passivated and/or tested per ASTM A380
For use in sheet hardness:
HRB 70 or less (Hardness Rockwell “B” Scale)
HB 125 or less (Hardness Brinell)

All dimensions are in inches.

Type

Thread
Code

A
(Shank)
Max.

Min. Sheet
for SelfClinching

Min. Sheet
for Flush
Installation

Hole Size
in Sheet
+ .003
- .000

B
Nom.

C
Max.

E
Nom.

H
Nom.

Min. Dist.
HoleC/L
to Edge

.112-40
(#4-40)

PR10

440

.125

.050

.125

.281

.195

.280

.31

.075

.31

.138-32
(#6-32)

PR10

632

.125

.050

.125

.312

.225

.311

.34

.075

.33

.164-32
(#8-32)

PR10

832

.125

.050

.125

.344

.255

.343

.37

.075

.34

.190-32
(#10-32)

PR10

032

.125

.050

.125

.375

.290

.374

.41

.075

.36

Thread
Code

A
(Shank)
Max.

Min. Sheet
for SelfClinching

Min. Sheet
for Flush
Installation

Hole Size
in Sheet
+ 0.08

B
Nom.

C
Max.

E
Nom.

H
Nom.

Min. Dist.
HoleC/L
to Edge

UNIFIED

Thread
Size

METRIC

All dimensions are in millimeters.

Thread
Size x
Pitch

Type

M3 x 0.5

PR10

M3

3.18

1.27

3.18

7.14

4.75

7.12

7.87

1.91

7.87

M4 x 0.7

PR10

M4

3.18

1.27

3.18

8.74

6.48

8.72

9.53

1.91

8.64

M5 x 0.8

PR10

M5

3.18

1.27

3.18

9.53

7.37

9.5

10.41

1.91

9.14

N10™ SELF-CLINCHING RECEPTACLE NUTS(4)
N10
Receptacle Nut

C
H

A

Threads:
Internal, ASME B1.1, 2B / ASME B1.13M, 6H (2)
Material:
Hardened Carbon Steel
Finish:
ZI - Zinc plated, 5µm, colorless (standard) (3)
For use in sheet hardness:
HRB 80 or less (Hardness Rockwell “B” Scale)
HB 150 or less (Hardness Brinell)

PART NUMBER DESIGNATION
N10

–

832

–

1

ZI

Shank
Code

Finish

F
T

Type

UNIFIED

All dimensions are in inches.

Thread Size
Code

E

Clinching profile may vary.

Thread
Size

Type

Thread
Code

Shank
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ .003
- .000

C
Max.

E
Nom.

F
± .010

H
Nom.

T
± .005

Min. Dist.
HoleC/L
To Edge

.112-40
(#4-40)

N10

440

1

.038

.040

.187

.186

.28

.130

.126

.24

.22

.138-32
(#6-32)

N10

632

1

.038

.040

.213

.212

.31

.130

.156

.24

.27

.164-32
(#8-32)

N10

832

1

.038

.040

.250

.249

.34

.130

.187

.24

.28

.190-32
(#10-32)

N10

032

1

.038

.040

.277

.276

.37

.130

.213

.24

.31

METRIC

All dimensions are in millimeters.

Thread
Size x
Pitch

Type

Thread
Code

Shank
Code

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+ 0.08

C
Max.

E
Nom.

F
± 0.25

H
Nom.

T
± 0.13

Min. Dist.
HoleC/L
To Edge

M3 x 0.5

N10

M3

1

0.97

1

4.75

4.73

7.11

3.3

3.2

6

5.59

M4 x 0.7

N10

M4

1

0.97

1

6.35

6.33

8.64

3.3

4.75

6

7.11

M5 x 0.8

N10

M5

1

0.97

1

7.04

7.01

9.53

3.3

5.41

6

7.87

(1) The purpose of the thread is for component screw retention only, thread may not accept 2B/6H Go threaded plug gage, but class 3A/4h screw must
pass with finger torque, may not reject NoGo threaded plug gage and minor diameter may exceed 2B/6H maximum.
(2) 2B (unified) and 6H (metric) go gauge may stop at pilot end but class 3A (unified) and 4h (metric) screws will pass through with finger torque.
(3) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.
(4) Also available on special order F10 self-clinching floating receptacle nuts.
PennEngineering • www.pemnet.com PF-23

REELFAST® SMTPFLSM™ SURFACE MOUNT CAPTIVE PANEL SCREWS
Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)

• All metal captive screw assembly installs in one piece
utilizing pick and place method.
• Combination drive, Torx®/slot.
• Solderable finish.

Material:
Retainer: Carbon Steel
Screw: Hardened Carbon Steel
Spring: 300 Series Stainless Steel
Finish:
Retainer: ET - Electro-plated tin ASTM B545, Class B
with preservative coating, annealed (2)
Screw: ZI - Zinc plated, 5µm, colorless (3)
Spring: Natural Finish
Dimples on head
designate metric thread.

Torx®/slot driver size.
(See chart)

E1
H

ØD

T2

Two Groove
(Registered
Trademark)

Plated through hole
not required.

PART NUMBER DESIGNATION
SMTPF LS

M –

Driver

Anti-cross
Thread
Feature

Type

440 – 0
Thread
Code

Length
Code

ET

ØH

G1

Finish

C

A

G2

E2
Installation Data page 36. Performance Data page 41.

All dimensions are in inches.
UNIFIED

Solder
Pad

T1

				 Screw
A
Min.									
E2
G1
G2
H
T1
T2
Thread		
Thread Length (Shank)
Sheet
C
E1
Size
Type
Code
Code
Max.
Thickness
Max.
±.010
Nom
±.025
±.025
±.010
Nom.
Nom.
.112-40
0
.040
.210
SMTPFLSM
440
.063
.063
.215
.280
.300
.100
.38
.55
(#4-40)			
1						
.100
.270
.138-32
0
.040
.240
.063
.247
.310
.320
.100
.42
.62
SMTPFLSM
632
.063
(#6-32)			
1						
.100
.300

ØK Hole Size
in Sheet
+.003 -.000

ØD Min.
Solder
Pad

Driver
Size

.220

.340

T15

.252

.400

T15

ØK Hole Size
in Sheet
+0.08

ØD Min.
Solder
Pad

Driver
Size

5.6

8.6

T15

6.4

10.2

T15

METRIC

All dimensions are in millimeters.

				 Screw
A
Min.									
E2
G1
G2
H
T1
T2
Thread		
Thread Length (Shank)
Sheet
C
E1
Size
Type
Code
Code
Max.
Thickness
Max.
±0.25
Nom
±0.64
±0.64
±0.25
Nom.
Nom.
0
1
5.3
M3 x 0.5
SMTPFLSM
M3
1.6
1.6
5.46
7
7.6
2.5
9.6
14
				 1						2.5
6.8
0
1
6.1
1.6
6.27
7.9
8.13
2.5
10.7
15.7
M3.5 x 0.6
SMTPFLSM
M3.5
1.6
				 1						2.5
7.62

NUMBER OF PARTS PER REEL
Thread Size

Parts Per Reel

440

200

632

150

M3

200

M3.5

150

Packaged on 330 mm recyclable reels. Tape width is 24 mm.
Supplied with polyimide patch for vacuum pick up. Reels conform to EIA-481.

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to
Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2
(2) Optimal solderability life noted on packaging.
(3) See PEM Technical Support section of our website (www.pemnet.com) for related plating standards and specifications.

PF-24 PennEngineering • www.pemnet.com

REELFAST® SMTPF™ SURFACE MOUNT CAPTIVE PANEL SCREWS
• Retainer installed using conventional surface mount
techniques.
• Simply snap screw into retainer to complete assembly.
• Black ABS knob standard.
• Optional molded-through colors available.
• Available with Torx® recess.

Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g (1)
Material:
Knob: ABS (2)
Retainer: Carbon Steel
Screw: Carbon Steel
Finish:
Retainer: ET - Electro-plated tin ASTM B545, Class B 		
with preservative coating, annealed
Screw: CN - Bright nickel over copper flash per ASTM B689

When Assembled
T2

Spring action of
plastic “fingers”
holds screw
in retracted
position.

P

SMTPR

PC Board

L

T1

PSHP

E C

G

Patented.

Installation Data page 36.
Performance Data page 41.

A

All dimensions are in inches.

UNIFIED

Screw Part Number
Thread
Size

Type

Thread
Code

.112-40
(#4-40)

PSHP

440

.138-32
(#6-32)

PSHP

632

Assembly Dimensions

Screw
Length
Code

Retainer
Part
Number

0
1

SMTPR-6-1

0
1

SMTPR-6-1

		

E1

B C1

T

R

Screw Dimensions			

Retainer Dimensions

Total					A
Radial
C1
E1
L
T
(Shank)
Float
±.010
±.010
±.015
Nom.
Max.

G
± .025

P
± .025

T1
Nom.

T2
Nom.

.188
.248

.000
.026

.478

.646

.510
.015
.440
.542
			
.570

.663
.723

.188

.000
.026

.478

.646

.510
.020
.440
.542
			
.570

.663

.248

.723

Min.
Sheet
Thick.

B
±.003

C
Max.

E
R
Nom. ±.005

.060

.060

.167

.249

.375

.325

.060

.060

.167

.249

.375

.325

All dimensions are in millimeters.

METRIC

Screw Part Number
Thread
Size x
Pitch

Type

Thread
Code

M3 x 0.5

PSHP

M3

M3.5 x 0.6

PSHP

M3.5

Assembly Dimensions

Screw
Length
Code

Retainer
Part
Number

0
1

SMTPR-6-1

0
1

SMTPR-6-1

		

Screw Dimensions			

G
± 0.64

P
± 0.64

T1
Nom.

T2
Nom.

4.78
6.3

0
.66

12.14

16.41

12.95
.38
11.18
13.77
			
14.48

16.84
18.36

12.14

16.41

12.95
.51
11.18
13.77
			
14.48

16.84

4.78

0

6.3

.66

RETAINER - Packaged on 330 mm recyclable reels of 465
pieces. Tape width is 24 mm. Supplied with Kapton® patch for
vacuum pick up. Reels conform to EIA-481.
SCREW - Packaged in bags. Retainers and screws are sold
separately.

18.36

PART NUMBER DESIGNATION
FOR SCREW
PSHP – 632 –
Type

Thread
Code

0

L

Length Cap
Code Style

(Lobed)

COLOR CAPABILITIES FOR PSHP SCREW

Red #002

Orange #003

Yellow #004

001

Blue #006

Color
Code

Non-flammable UL 94-V0 plastic caps are available on special order.

C
Max.

E
Nom.

R
±0.13

1.53

1.53

4.24

6.33

9.53

8.26

1.53

1.53

4.24

6.33

9.53

8.26

Type

(Standard
Black)

Available with Torx®
recess on special order.

Violet #007

B
±0.08

SMTPR –

Four dimples on
head designate
metric thread.

Green #005

Min.
Sheet
Thick.

PART NUMBER DESIGNATION
FOR RETAINER

The colors shown here (codes #002 thru #007) are non-stocked standards and
available on special order. Since actual cap colors may vary slightly from those
shown here, we recommend that you request samples for color verification. If you
require a custom color or you need a “color matched” cap, please contact us.
Std. Black #001

Retainer Dimensions

Total					A
Radial
C1
E1
L
T
(Shank)
Float
±0.25 ±0.25
±0.38
Nom.
Max.

Metal Phillips Recess
#4-40 & M3 = #1
#6-32 & M3.5 = #2

6
Retainer
Size

–

1

ET

Shank
Code

Finish

.396”/
10.06 mm
Min.

Solder
Pad
Plated through hole
not required.
.250” +.003 –.000
6.35 mm +0.08

Stencil Masking Examples

(1) As with all Class 2A/6g external threads with an additive finish, the maximum major
and pitch, after plating, may equal basic sizes and be gauged to Class 3A/4h, per ANSI
B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
(2) See PEM Technical Support section of our website (www.pemnet.com) for related
plating standards and specifications.
PennEngineering • www.pemnet.com PF-25

PFK™ BROACHING CAPTIVE PANEL SCREWS
• For permanent and reliable installation in PC boards.
• Screw assemblies remain captive for easy mounting and removal.
Threads:
External, ASME B1.1, 2A / ASME B1.13M, 6g
Material:
Retainer: 300 Series Stainless Steel
Screw: 300 Series Stainless Steel
Spring: 300 Series Stainless Steel
Retaining Ring: Nylon, temperature limit 200˚ F / 93˚ C

Blue plastic retaining ring*
(Trademark)

Finish:
Retainer: Passivated and/or tested per ASTM A380
Screw: Passivated and/or tested per ASTM A380
Spring: Natural Finish

E
Diagonal knurl
identifies metric
thread sizes

H

T2
T1

P

PART NUMBER DESIGNATION
PFK

G

A

C

For use in:
PC Boards

Shoulder
provides
positive
stop during
installation.

–

Type

Installation Data page 33. Performance Data page 41.

632

Thread Size
Code

–

40

Screw
Length
Code

UNIFIED

All dimensions are in inches.

Thread
Size

Type

Thread
Code

.112-40
(#4-40)

PFK

440

.138-32
(#6-32)

PFK

632

Screw
Length
Code
40
62
84
40
62
84

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+.003 -.000

C
± .003

E
±.010

.060

.060

.265

.283

.312

.060

.060

.281

.299

.344

Screw
Length
Code
40
62
84

A
(Shank)
Max.

Min.
Sheet
Thickness

Hole Size
In Sheet
+0.08

C
± 0.08

E
±.25

G
± 0.4

H
± 0.13

1.53

1.53

6.73

7.19

7.92

6.4
9.5
12.7

1.83

G
± .016
.250
.375
.500
.250
.375
.500

H
± .005
.072

.072

T1
Max.

T2
Nom.

Min. Dist.
HoleC/L
To Edge

.36

.54

.20

.36

.54

.26

P
± 0.64

T1
Max.

T2
Nom.

Min. Dist.
HoleC/L
To Edge

0
3.2
6.4

9.14

13.72

5.08

P
± .025
.000
.125
.250
.000
.125
.250

METRIC

All dimensions are in millimeters.

Thread
Size x
Pitch

Type

Thread
Code

M3 x 0.5

PFK

M3

PF-26 PennEngineering • www.pemnet.com

VALUE-ADDED CAPABILITIES
VALUE-ADDED CAPABILITIES
Tight Seal Solutions

ATCA Solutions

Use PF11PM captive panel screw and
TPXS pin in conjunction to satisfy the
requirements of the PICMG 3.0 of the
Advanced TCA®.

Nylon Locking Patch

Consider adding an o-ring to our PEM
C.A.P.S.® captive panel screw. When
fastened, it provides a tight seal above
the panel.

Thread-forming Opportunity
PennEngineering is official licensee for REMFORM®, TAPTITE®, PT®,
and DELTA PT® fastener products.

Nylon locking patch is available to be added
to any of PEM captive panel screws for
applications requiring a locking element.

REMFORM® and TAPTITE® are trademarks of REMINC®.
PT® and DELTA PT® are trademarks of EJOT®.

MAThread® Anti Cross-thread Technology

PennEngineering is a licensee of MAThread® Anti Cross-Threading Technology. This unique design allows the threads
to self-align and drive easily with reduced effort. This helps speed assembly, reduce or eliminate failures, repairs,
scrap, downtime, and warranty service associated with thread damage. This option is available on most types of
PEM captive panel screws.
MAThread® is a registered trademark of MAThread inc.
Anti Cross-Thread Feature

PennEngineering • www.pemnet.com PF-27

CAPTIVE PANEL SCREW INSTALLATION
INSTALLATION NOTES

• For best results we recommend using a PEMSERTER® press for installation of PEM self-clinching fasteners. Please check our website for more information.
• Visit the Animation Library on our website to view the installation process for select products.

PF11™/PF12™/PF11M™/PF12M™/PEM C.A.P.S.® FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch
side) over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until the
shoulder of the retainer comes in contact with the sheet material.

Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

440

.260

.437

8003521

8003518

632

.390

.468

8003522

8003519

Thread
Code
METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Anvil Dimensions (mm)
A
C
±0.05
±0.05

Anvil Part
Number

Punch Part
Number

M3

6.6

11.1

8003521

8003518

M3.5

9.91

11.89

8003522

8003519

832

.390

.531

8003523

8003520

M4

9.91

13.49

8003523

8003520

032

.390

.531

8003523

8004350

M5

9.91

13.49

8003523

8004350

0420

.480

.598

8004351

8004352

M6

12.19

15.19

8004351

8004352

Thread Dia. +.080” / +2 mm

Max. Screw
Extension

PUNCH

A

ANVIL

C

(1) Punches and anvils should be hardened.

PF11MF™/PF12MF™ FASTENERS (flare-mount installation)
1. Prepare properly sized mounting hole in sheet with countersink.
2. Place fastener into recessed anvil, and place workpiece over shank
of fastener.
3. With installation punch and anvil surfaces parallel, apply
squeezing force to flare the retainer of the fastener.

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Punch Dimensions (in.)
E
F
+.003 –.000
±.002

Anvil
Part No.

Punch
Part No.
8013670

440

.260

.437

.123

.133

8003521

632

.390

.468

.143

.156

8003522

8013671

832

.390

.531

.202

.210

8003523

8013672

032

.390

.531

.202

.210

8003523

8013672

0420

.480

.598

.255

.264

8004351

8013674

Anvil
Part No.

Punch
Part No.

Thread
Code

Anvil Dimensions (mm)
A
C
±0.05
±0.05

Punch Dimensions (mm)
E
F
+0.08
±0.05

M3

6.6

11.1

3.12

3.38

8003521

8013670

M4

9.91

13.49

5.13

5.33

8003523

8013672

M5

9.91

13.49

5.13

5.33

8003523

8013672

M6

12.19

15.19

6.48

6.71

8004351

8013674

(1) Punches and anvils should be hardened.

PF-28 PennEngineering • www.pemnet.com

BEFORE INSTALLATION

AFTER INSTALLATION
PUNCH

.500” / 12.7mm
Min.

ANVIL

A

PUNCH DETAIL

C
.015” ±.005” COUNTERSINK DETAIL
90˚
0.38mm ±0.1mm
Nom.

90˚
Nom.
E
F
Mounting Hole Dia.
(see page 6)

CAPTIVE PANEL SCREW INSTALLATION
E

PF11MW™/PF12MW™ FASTENERS
Max. Screw
Extension

1. Prepare properly sized mounting hole in sheet.
2. Place fastener into recessed anvil, place
workpiece over shank of fastener, then place the
washer over the shank of the fastener.
3. With installation punch and anvil surfaces
parallel, apply squeezing force with flaring punch.

PUNCH

PANEL

FLARING PUNCH DETAIL

WASHER

I

.010” R /
0.254mm R
Max.
.003” R /
0.08mm R
Max.

A
ANVIL

E
F
G
H

C

PEMSERTER® Installation Tooling(1)

UNIFIED

Anvil Dimensions (in.)
Thread
Code

A
±.002

Punch Dimensions (in.)

C
±.001

E
+.003 –.000

F
±.001

G
±.003

I
±.004

Anvil
Part No.

Punch
Part No.
8014304

440

.260

.437

.120

.135

.204

.250

.015

8003521

632

.390

.468

.140

.159

.249

.300

.015

8003522

8014305

832

.390

.531

.201

.217

.340

.400

.028

8003523

8014306

032

.390

.531

.201

.217

.340

.400

.028

8003523

8014306

0420

.480

.598

.252

.271

.430

.500

.028

8004351

8014307

C
±0.03

E
+0.08

F
±0.03

G
±0.08

H
Min.

I
±0.1

Anvil
Part No.

Punch
Part No.
8014304

Anvil Dimensions (mm)
METRIC

H
Min.

Thread
Code

A
±0.05

Punch Dimensions (mm)

M3

6.6

11.1

3.05

3.43

5.18

6.35

.381

8003521

M3.5

9.9

11.9

3.56

4.04

6.32

7.62

.381

8003522

8014305

M4

9.9

13.5

5.11

5.51

8.64

10.16

.711

8003523

8014306

M5

9.9

13.5

5.11

5.51

8.64

10.16

.711

8003523

8014306

M6

12.2

15.2

6.4

6.88

10.92

12.7

.711

8004351

8014307

(1) Punches and anvils should be hardened.

PFHV™ FASTENERS
Thread Dia. +.080” / +2 mm

1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch
side) over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until
the shoulder of the retainer comes in contact with the sheet material.

Max. Screw
Extension

PUNCH

Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

440

.220

.285

8004688

970200009400

632

.250

.301

8004689

8015656

832

.285

.332

8005439

970200230400

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code

Anvil Dimensions (mm)
A
C
±0.05
±0.05

Anvil Part
Number

Punch Part
Number
970200020400

M3

5.59

7.24

8004688

M3.5

6.35

7.65

8004689

8015656

M4

7.24

8.43

8005439

970200230400

A

ANVIL

C

(1) Punches and anvils should be hardened.

PennEngineering • www.pemnet.com PF-29

CAPTIVE PANEL SCREW INSTALLATION
PF7M™ FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not
perform any secondary operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece
(preferably the punch side) over the shank of fastener.
3. With installation punch and anvil surfaces parallel, apply
squeezing force until the shoulder of the retainer comes in
contact with the sheet material.

METRIC

UNIFIED

PEMSERTER® Installation Tooling
Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil
Part
Number

.020” / .51 mm x
45˚ Nom.

Punch
Part
Number

.319

.290

8016175

8003518

632

.333

.330

8016176

8003519

832

.353

.385

8016177

8003520

Anvil
Part
Number

Punch
Part
Number

Anvil Dimensions (mm)
A
C
±0.05
±0.05

PUNCH
Max. Screw
Extension

(1)

440

Thread
Code

Thread Dia.
+.080” / +2mm

M3

8.1

7.34

8016175

8003518

M4

8.9

9.8

8016177

8003520

A
ANVIL

C

(1) Punches and anvils should be hardened.

AFTER INSTALLATION

BEFORE INSTALLATION

PF7MF™ FASTENERS (flare-mount installation)

PUNCH
Max. Screw
Extension

1. Prepare properly sized mounting hole in sheet with
countersink. Do not perform any secondary operations
such as deburring.
2. Place fastener into recessed anvil, and place workpiece
over the shank of fastener.
3. With installation punch and anvil surfaces parallel, apply
squeezing force to flare the retainer of the fastener.

.020” / .51mm x
45˚ Nom.

ANVIL
PUNCH DETAIL

A

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Punch Dimensions (in.)
E
F
+.003 –.000
±.002

Punch
Part No.

.133

8016175

8013670

C

440

.319

.290

632

.333

.330

.143

.156

8016176

8013671

COUNTERSINK DETAIL

832

.353

.385

.202

.210

8016177

8013672

90˚ Nom.

Anvil
Part No.

Punch
Part No.

Thread
Code

Anvil Dimensions (mm)
A
C
±0.05
±0.05

.123

Anvil
Part No.

Punch Dimensions (mm)
E
F
+0.08
±0.05

M3

8.1

7.34

3.12

3.38

8016175

8013670

M4

8.9

9.8

5.13

5.33

8016177

8013672

(1) Punches and anvils should be hardened.

PF-30 PennEngineering • www.pemnet.com

90˚ Nom.
E
F

Mounting Hole Dia.
(see page 11)
.015” ±.005”
0.38 mm ±0.1mm

CAPTIVE PANEL SCREW INSTALLATION
PF30™/PF31™/PF32™ FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch side)
over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until the
shoulder of the retainer comes in contact with the sheet material.

Thread Dia. +.080” / +2mm

Max. Screw
Extension

PUNCH

Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

440

.295

.421

975201060

975200060

632

.295

.453

975201061

975200061

832

.310

.484

975201062

975200062

032

.310

.546

975201063

975200063

0420

.365

.640

975201064

975200064

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code

Anvil Dimensions (mm)
A
C
±0.05
±0.05

Anvil Part
Number

Punch Part
Number
975200060

M3

7.49

10.69

975201060

M4

7.87

12.29

975201062

975200062

M5

7.87

13.87

975201063

975200063

M6

9.27

16.26

975201064

975200064

A

ANVIL

C

(1) Punches and anvils should be hardened.

PF50™/PF51™/PF52™/PF60™/PF61™/PF62™ FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch side)
over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until the
shoulder of the retainer comes in contact with the sheet material.

Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

440

.295

.421

975201060

975200060

632

.295

.453

975201061

975200061

Thread
Code
METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Anvil Dimensions (mm)
A
C
±0.05
±0.05

Thread Dia. +.080” / +2mm

Max. Screw
Extension

PUNCH

A
Anvil Part
Number

Punch Part
Number

M3

7.49

10.69

975201060

975200060

M3.5

7.49

11.51

975201061

975200061

832

.310

.484

975201062

975200062

M4

7.87

12.29

975201062

975200062

032

.310

.546

975201063

975200063

M5

7.87

13.87

975201063

975200063

0420

.365

.640

975201064

975200064

M6

9.27

16.26

975201064

975200064

ANVIL

C

(1) Punches and anvils should be hardened.

PennEngineering • www.pemnet.com PF-31

CAPTIVE PANEL SCREW INSTALLATION
PFC4™ FASTENERS

Thread Dia. +.080” / +2mm

1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch side)
over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until the
shoulder of the retainer comes in contact with the sheet material.
Installation Requirements
1. Sheet hardness must be less than 88 on the Rockwell “B” scale.
2. Hole punch should be kept sharp to minimize work hardening around hole.
3. Fastener should be installed in punch side of hole.
4. Fastener should not be installed near bends or other highly cold worked areas
where sheet hardness may be greater than 88 on the Rockwell “B” scale.

PUNCH

Max. Screw
Extension

ANVIL

A

C

Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

440

.345

.358

975200027

975200060

632

.345

.390

975201243

975200061

832

.435

.421

975200029

975200062

032

.435

.452

975201244

975200063

METRIC

UNIFIED

PEMSERTER® Installation Tooling

(1)

Thread
Code

Anvil Dimensions (mm)
A
C
±0.05
±0.05

Anvil Part
Number

Punch Part
Number
975200060

M3

8.76

9.09

975200027

M4

11.05

10.69

975200029

975200062

M5

11.05

11.48

975201244

975200063

(1) Punches and anvils should be hardened.

PFC2P™ FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not perform any secondary operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch side) over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until the shoulder of the retainer comes in
contact with the sheet material.
Thread Dia. +.080” / +2mm

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Punch Part
Number

975200026

975200060

440

.345

632

.345

.358

975200027

975200061

832

.435

.386

975200028

975200062

032

.435

.421

975200029

975200063

Thread
Code

.323

Anvil Part
Number

Anvil Dimensions (mm)
A
C
±0.05
±0.05

PUNCH

Max. Screw
Extension

ANVIL
Anvil Part
Number

Punch Part
Number
975200060

M3

8.76

8.2

975200026

M4

11.05

9.8

975200028

975200062

M5

11.05

10.69

975200029

975200063

(1) Punches and anvils should be hardened.

PF-32 PennEngineering • www.pemnet.com

A

C

CAPTIVE PANEL SCREW INSTALLATION
PFC2™/PFS2™ FASTENERS
Thread Dia. +.080” / +2mm

1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch
side) over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until
the shoulder of the retainer comes in contact with the sheet material.

Max. Screw
Extension

PUNCH

Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

440

.345

.323

975200026

975200060

632

.345

.358

975200027

975200061

832

.435

.386

975200028

975200062

032

.435

.421

975200029

975200063

0420

.565

.484

975200030

975200064

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code

Anvil Dimensions (mm)
A
C
±0.05
±0.05

Anvil Part
Number

Punch Part
Number
975200060

M3

8.76

8.2

975200026

M4

11.05

9.8

975200028

975200062

M5

11.05

10.69

975200029

975200063

M6

14.35

12.29

975200030

975200064

ANVIL
A

(1) Punches and anvils should be hardened.

C

PTL2™/PSL2™ FASTENERS

Pin Dia. +.080” / +2mm

1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch side)
over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until the
shoulder of the retainer comes in contact with the sheet material.

Max. Pin
Extension

Type

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

PTL2

.580

.520

975201245

970200013300

PSL2

.490

.520

8021146

970200013300

ANVIL

A
METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)

PUNCH

Type

Anvil Dimensions (mm)
A
C
±0.05
±0.05

Anvil Part
Number

Punch Part
Number

PTL2

14.86

13.21

975201245

970200013300

PSL2

12.47

13.21

8021146

970200013300

C

(1) Punches and anvils should be hardened.

PFK™ FASTENERS

Thread Dia. +.080” / +2mm

1. Prepare properly sized mounting hole in board.
2. Place fastener into recessed anvil, and place workpiece over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until
the shoulder of the retainer comes in contact with the board.

PUNCH

Max. Screw
Extension

Thread
Code

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

440

.320

.323

975200026

975200060

632

.320

.358

975200027

975200061

ANVIL
METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code
M3

Anvil Dimensions (mm)
A
C
±0.05
±0.05
8.13

8.2

Anvil Part
Number

Punch Part
Number

975200026

975200060

A

(1) Punches and anvils should be hardened.
C

PennEngineering • www.pemnet.com PF-33

CAPTIVE PANEL SCREW INSTALLATION
SCBR™ FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not perform any
secondary operations such as deburring. If the hole is punched, be
sure to install fastener into punched side of hole.
2. Assemble spring on screw by rotating spring counter clockwise
and position assembly into recessed magnetic punch.
3. Position hole in workpiece over retractable anvil pin.
4. With installation punch and anvil surfaces parallel, apply squeezing
force on top of the screw head and the underside of the sheet
material. The squeezing action forces the displacer of the screw
into the sheet, causing it to reduce the mounting hole diameter and
captivate the screw.

Magnetic
Punch (1)

K
J
BEFORE

Magnetic
Punch (1)

AFTER

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Thread
Code

Anvil
Part Number

Magnetic Punch
Part Number (2)

440
632

Installation Tooling Dimensions (in.)		
C
J
K
.113 - .116
.354 – .357
.035
.139 - .142
.387 – .390
.035

970200048300
970200052300

8016210
8016211

832

.165 - .168

.035

970200054300

8016212

Installation Tooling Dimensions (mm)		
C
J
K
3.03 - 3.11
9.25 – 9.32
0.89
4.03 - 4.11
10.8 – 10.9
0.89

Anvil
Part Number

Magnetic Punch
Part Number (2)

970200049300
970200053300

8016213
8016214

Thread
Code
M3
M4

.416 – .419

Magnetic
Punch (1)
ANVIL PIN
SHEET
L*

+.125” / 3.18mm
Min.

(1) Punches and anvils should be hardened.
(2) Pneumatic punch may also be used. Please contact our PEMSERTER tooling
division for punch part numbers.

ANVIL

* For “L”,
see page 18.

C

SCB™/SCBJ™ FASTENERS
1. Prepare properly sized mounting hole in sheet.
2. Place the fastener through mounting hole and into anvil. A flat or
recessed punch can be used.
3. With installation punch and anvil surfaces parallel, apply squeezing
force to the top of the screw head and the underside of the sheet
material. The squeezing action forces the shoulder of the screw
into the sheet, displacing sheet material, causing it to fill the void
under the head and shoulder of the screw.

H
E

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)
Installation Tooling Dimensions (in.)
Thread 		
Code
C
E
H
440

.113 - .116

.270 - .280

.073 - .074

632

.139 - .142

.308 - .318

.073 - .074

L*

+.125” / 3.18mm
Min.

Installation Tooling Dimensions (mm)
Thread 		
Code
C
E
H
M3

3.03 - 3.11

6.86 - 7.11

1.85 - 1.88

M4

4.03 - 4.11

8.53 - 8.79

1.85 - 1.88

(1) Punches and anvils should be hardened.

PF-34 PennEngineering • www.pemnet.com

* For “L”,
see page 19.

C

CAPTIVE PANEL SCREW INSTALLATION
HSCB™ FASTENER INTO HEAT SINK

C

1. Prepare properly sized mounting hole in heat sink. Do not perform any
secondary operations such as deburring. If the hole is punched, be sure to
install the fastener into the punch side of the hole.
2. Place the head of the screw into the recess of the installation anvil
and position assembly into recessed magnetic punch.
3. Place the spring over the shoulder of the screw, maintaining concentricity.
4. Position the heat sink mounting hole over the screw.
5. Bring the heat sink down over the screw and onto the shoulder of the screw.
6. With installation punch and anvil surfaces parallel, apply a squeezing force
to the heat sink and the head of the screw. The squeezing action forces the
displacer of the screw into the heat sink, causing it to reduce the mounting
hole diameter and captivate the screw and spring.

UNIFIED

Thread
Code

ME TR I C

PEMSERTER® Installation Tooling

Thread
Code

440
632

M3

PUNCH

ANVIL

AFTER

(1)

Installation Tooling Dimensions (in.)
C
J
.113 - .116
.322 - .324
.139 - .142
.362 - .364

Anvil
Part Number

Punch
Part Number

8018043
8018044

970200006300
970200007300

Installation Tooling Dimensions (mm)
C
J
3.03 - 3.11
8.43 - 8.48

Anvil
Part Number

Punch
Part Number

8018045

970200229300

BEFORE
J
.250” ±.005/
6.35mm ±0.13

ANVIL

(1) Punches and anvils should be hardened.

HSR™ NUT/STANDOFF
1. Prepare properly sized mounting hole in board.
2. Place fastener into the anvil hole and place the mounting hole over the shank of the fastener as shown in drawing.
3. With installation punch and anvil surfaces parallel, apply squeezing force until shoulder contacts the board.

UNIFIED

PEMSERTER® Installation Tooling(1)

HSR-440

Anvil Dimensions (in.)		
Anvil Part
Punch Part
P
A
Number
Number
±.005
.228 - .231
.115
8023699
975200048

HSR-632

.290 - .293

		
Thread
Code

.115

8023701

PUNCH

975200048

METRIC

P
		
Thread
Code
HSR-M3

Anvil Dimensions (mm)		
Anvil Part
Punch Part
P
A
Number
Number
±0.13
5.8 - 5.86
2.92
8023700
975200048

ANVIL

A

(1) Punches and anvils should be hardened.

FINAL ASSEMBLY
Once the screw and spring are captivated, assemble the heat sink to the circuit board by tightening the screw into the
receptacle nut or standoff until the audible “click” is heard. The screw will continue to rotate, but will no longer be engaged
in the threads or continue to actively tighten.

PennEngineering • www.pemnet.com PF-35

CAPTIVE PANEL SCREW INSTALLATION
PR10™ FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not perform any
secondary operations such as deburring.
2. Place fastener into the mounting hole.
3. With installation punch and anvil surfaces parallel, apply squeezing force
until the retainer is flush in the sheet.

PUNCH

ANVIL

N10™ FASTENERS
1. Prepare properly sized mounting hole in sheet. Do not perform any secondary
operations such as deburring.
2. Place fastener into recessed anvil, and place workpiece (preferably the punch side)
over shank of fastener.
3. With installation punch and anvil surfaces parallel, apply squeezing force until the
shoulder of the nut comes in contact with the sheet material.

Thread
Code
440

Anvil Dimensions (in.)
A
C
±.002
±.002

Anvil Part
Number

Punch Part
Number

8006124

975200048

.225

.298

632

.225

.329

8006735

975200048

832

.225

.361

8006736

975200048

032

.225

.392

8006174

975200048

A

METRIC

UNIFIED

PEMSERTER® Installation Tooling(1)

PUNCH

Thread
Code
M3

Anvil Dimensions (mm)
A
C
±0.05
±0.05

Anvil Part
Number

Punch Part
Number
975200048

5.72

7.57

8006124

M4

5.72

9.17

8006736

975200048

M5

5.72

9.6

8006174

975200048

(1) Punches and anvils should be hardened.

SMTPFLSM™ CAPTIVE PANEL SCREWS
Polyimide patch applied
here for vacuum pick up.

Solder paste applied
to pad on PCB.

Solder fastener in place
using standard surface
mount techniques.

Installs in retracted/unfastened position

SMTPF™ RETAINER
Polyimide patch applied
here for vacuum pick up.

Solder paste applied
to pad on PCB.

Solder fastener in place
using standard surface
mount techniques.

PF-36 PennEngineering • www.pemnet.com

Screw snapped in place.

ANVIL
C

CAPTIVE PANEL SCREW PERFORMANCE DATA(1)
PF11™/PF12™/PF11M™/PF12M™/PEM C.A.P.S.® FASTENERS
Test Sheet Material

PF11
PF12

Thread
Code

Aluminum

Test Sheet Material
Cold-Rolled Steel

Installation
(lbs.)

Retainer Pushout
(lbs.)

Installation
(lbs.)

Retainer Pushout
(lbs.)

1500
2000
3000
3000
3500

80
95
100
100
105

2500
3500
4500
4500
5000

145
150
160
160
195

440
632
832
032
0420

Type
METRIC

UNIFIED

Type

PF11
PF12

Thread
Code

Aluminum

Cold-Rolled Steel

Installation
(kN)

Retainer Pushout
(N)

Installation
(kN)

Retainer Pushout
(N)

6.7
13.3
13.3
15.6

355
445
445
465

11.1
20
20
22.2

645
710
710
865

M3
M4
M5
M6

Installation		
Retainer Pullout
(lbs.)		(lbs.)

Type
		

Thread
Code

		

440

250		81

		

632

300		

175

PF11MF

832

350		

180

		

032

350		

180

		

0420

400		

200

METRIC

UNIFIED

PF11MF™ FASTENERS
Type
		
		

Installation		
Retainer Pullout
(kN)		(N)

Thread
Code
M3

1.1		360

PF11MF
		

M4

1.5		 800

M5

1.5		

800

		

M6

2		

890

PF11MW™ FASTENERS
		

Code

Test Sheet Material
				
		
1.52mm
Cold-rolled Steel
Type
Thread

Swaging Force		
Retainer Pullout
(lbs.)		(lbs.)

			
		

440

350		

112		

		

632

400		

138

PF11MW

832

700		

202		

		
METRIC

UNIFIED

Test Sheet Material
				
		
.060”
Cold-rolled Steel
Type
Thread

Code

Swaging Force		
Retainer Pullout
(N)		(N)

			
		

M3

1557		

		

M3.5

1779		

612

PF11MW

M4

3114		

897		

499		

		

032

700		

202

		

M5

3114		

897

		

0420

900		

212

		

M6

4003		

945

PFHV™ FASTENERS

PFHV

Thread
Code
440
632
832

Aluminum

Test Sheet Material
Cold-Rolled Steel

Installation
(lbs.)

Retainer Pushout
(lbs.)

Installation
(lbs.)

Retainer Pushout
(lbs.)

1700
1850
2100

108
117
134

2200
2400
2700

118
128
147

METRIC

UNIFIED

Test Sheet Material
Type

Type

PFHV

Thread
Code
M3
M3.5
M4

Aluminum

Cold-Rolled Steel

Installation
(kN)

Retainer Pushout
(N)

Installation
(kN)

Retainer Pushout
(N)

8.1
8.8
9.4

516
561
599

10.5
11.4
12.1

564
614
656

(1) Published installation forces are for general reference. Actual set-up and confirmation of complete installation should be made by observing
proper seating of fastener as described in the installation steps. Other performance values reported are averages when all proper
installation parameters and procedures are followed. Variations in mounting hole size, sheet material, and installation procedure may affect
performance. Performance testing this product in your application is recommended. We will be happy to provide technical assistance and/
or samples for this purpose.

PennEngineering • www.pemnet.com PF-37

CAPTIVE PANEL SCREW PERFORMANCE DATA(1)

METRIC

UNIFIED

PF7M™ FASTENERS
Type

Thread
Code

Rec.
Tightening
Torque
(in. lbs.) (2)

Min.		
Aluminum
Screw		
Tensile
Installation
(lbs.)
(lbs.)

Test Sheet Material
Cold-rolled Steel
Retainer Pushout
(lbs.)

Installation
(lbs.)

Retainer Pushout
(lbs.)

PF7M

440

4.5

580

1500

80

2500

145

PF7M

632

8.6

855

2000

95

3500

150

PF7M

832

15.6

1300

3000

100

4500

160

Thread
Code

Rec.
Tightening
Torque
(N • m) (2)

PF7M

M3

0.66

2900

6.7

355

11.1

645

PF7M

M4

1.57

5010

13.3

445

20

710

Type

Test Sheet Material
Min.		
5052-H34 Aluminum
Cold-rolled Steel
Screw		
Tensile
Installation
Retainer Pushout
Installation
Retainer Pushout
(N)
(kN)
(N)
(kN)
(N)

Rec.
Tightening
Torque
(in. lbs.) (2)

Min. Screw
Tensile
(lbs.)

Retainer
Pullout
(lbs.)

Type

Thread
Code

Installation
(lbs.)

PF7MF

440

4.5

580

250

81

PF7MF

632

8.6

855

300

175

PF7MF

832

15.6

1300

350

180

METRIC

UNIFIED

PF7MF™ FASTENERS
Thread
Code

Rec.
Tightening
Torque
(N•m) (2)

Min. Screw
Tensile
(N)

PF7MF

M3

0.66

2900

1.1

360

PF7MF

M4

1.57

5010

1.5

800

Type

Installation
(kN)

Retainer
Pullout
(N)

PF30™/PF31™/PF32™ FASTENERS
Test Sheet Material

PF30
PF31
PF32
PF30
PF31
PF32
PF30
PF31
PF32
PF30
PF31
PF32
PF32

Thread
Code
440
440
440
632
632
632
832
832
832
032
032
032
0420

Test Sheet Material
Cold-Rolled Steel

Installation
(lbs.)

Retainer Pushout
(lbs.)

Installation
(lbs.)

Retainer Pushout
(lbs.)

2200
2200
2200
2400
2400
2400
2800
2800
2800
3500
3500
3500
4300

64
105
185
66
105
190
68
110
200
72
150
260
320

5000
5000
5000
5500
5500
5500
6000
6000
6000
8000
8000
8000
12000

90
110
300
90
130
300
90
130
300
95
160
425
450

Type

METRIC

UNIFIED

Type

Aluminum

PF30
PF31
PF32
PF30
PF31
PF32
PF30
PF31
PF32
PF32

Thread
Code
M3
M3
M3
M4
M4
M4
M5
M5
M5
M6

Aluminum

Cold-Rolled Steel

Installation
(kN)

Retainer Pushout
(N)

Installation
(kN)

Retainer Pushout
(N)

9.8
9.8
9.8
12.5
12.5
12.5
15.6
15.6
15.6
19.1

285
465
823
302
489
890
320
667
1156
1423

22.2
22.2
22.2
26.7
26.7
26.7
35.6
35.6
35.6
53.4

400
489
1334
400
578
1334
423
712
1890
2002

(1) Published installation forces are for general reference. Actual set-up and confirmation of complete installation should be made by observing
proper seating of fastener as described in the installation steps. Other performance values reported are averages when all proper
installation parameters and procedures are followed. Variations in mounting hole size, sheet material, and installation procedure may affect
performance. Performance testing this product in your application is recommended. We will be happy to provide technical assistance and/
or samples for this purpose.
(2) Torque values shown will produce a preload of 70% minimum tensile with nut factor “k” equal to .1

PF-38 PennEngineering • www.pemnet.com

CAPTIVE PANEL SCREW PERFORMANCE DATA(1)
PF50™/PF51™/PF52™/PF60™/PF61™/PF62™ FASTENERS
Test Sheet Material
Aluminum		

Type
Thread
		 Code

UNIFIED

Installation
			 (lbs.)
PF50/PF60
PF51/PF61
PF52/PF62
PF50/PF60
PF51/PF61
PF52/PF62
PF50/PF60
PF51/PF61
PF52/PF62
PF50/PF60
PF51/PF61
PF52/PF62
PF52/PF62

440
440
440
632
632
632
832
832
832
032
032
032
0420

Retainer Pushout
(lbs.)

Installation
(lbs.)

Retainer Pushout
(lbs.)

64
105
185
66
105
190
68
110
200
72
150
260
320

5000
5000
5000
5500
5500
5500
6000
6000
6000
8000
8000
8000
12000

90
110
300
90
130
300
90
130
300
95
160
425
450

2200
2200
2200
2400
2400
2400
2800
2800
2800
3500
3500
3500
4300

Test Sheet Material

				

Cold-Rolled Steel

Aluminum		

Type
Thread
		 Code

Installation
			 (kN)

METRIC

				

PF50/PF60
PF51/PF61
PF52/PF62
PF50/PF60
PF51/PF61
PF52/PF62
PF50/PF60
PF51/PF61
PF52/PF62
PF50/PF60
PF51/PF61
PF52/PF62
PF52/PF62

M3
M3
M3
M3.5
M3.5
M3.5
M4
M4
M4
M5
M5
M5
M6

Cold-Rolled Steel

Retainer Pushout
(N)

Installation
(kN)

Retainer Pushout
(N)

285
465
823
294
465
845
302
489
890
320
667
1156
1423

22.2
22.2
22.2
24.4
24.4
24.4
26.7
26.7
26.7
35.6
35.6
35.6
53.4

400
489
1334
400
578
1334
400
578
1334
423
712
1890
2002

9.8
9.8
9.8
10.7
10.7
10.7
12.5
12.5
12.5
15.6
15.6
15.6
19.1

UNIFIED

Test Sheet Material
				
		
304
Stainless Steel
Type
Thread
		

Code

Installation		
Retainer Pushout
(lbs.)		(lbs.)

			
		
PFC4
		
		

440

9100		

632

10300		 400

350		

832

10800		

450		

032

11800		

550

METRIC

PFC4™ FASTENERS
Test Sheet Material
				
		
304
Stainless Steel
Type
Thread

		

Code

Installation		
Retainer Pushout
(kN)		 (N)

			
		

M3

40.5		

1557		

PFC4

M4

48		

2002		

		

M5

52.5		

2447

PFC2™/PFS2™/PFC2P™ FASTENERS
Test Sheet Material
Thread
Code
440
632
832
032
0420

PFC2
PFS2
PFC2P

Test Sheet Material

Cold-Rolled Steel

Installation
(lbs.)

Retainer Pushout
(lbs.)

Installation
(lbs.)

Retainer Pushout
(lbs.)

2400
2700
2900
3000
3500

240
275
300
400
400

3000
3500
3800
4000
5000

300
350
400
500
600

Type
METRIC

UNIFIED

Type

Aluminum

Thread
Code
M3
M4
M5
M6

PFC2
PFS2
PFC2P

Aluminum

Cold-Rolled Steel

Installation
(kN)

Retainer Pushout
(N)

Installation
(kN)

Retainer Pushout
(N)

10.7
12.9
13.3
15.6

1068
1334
1779
1779

13.3
16.9
17.8
22.2

1334
1779
2224
2669

PTL2™/PSL2™ FASTENERS
Type
		 Installation
(lbs.)
		
PTL2
PSL2

3000

Test Sheet Material
Cold-Rolled Steel

Retainer Pushout
(lbs.)

Installation
(lbs.)

Retainer Pushout
(lbs.)

400

4000

500

METRIC

UNIFIED

Test Sheet Material
Aluminum

Aluminum

Type
		 Installation
(kN)
		
PTL2
PSL2

13.3

Cold-Rolled Steel

Retainer Pushout
(N)

Installation
(kN)

Retainer Pushout
(N)

1779

17.8

2224

(1) Published installation forces are for general reference. Actual set-up and confirmation of complete installation should be made by observing
proper seating of fastener as described in the installation steps. Other performance values reported are averages when all proper installation
parameters and procedures are followed. Variations in mounting hole size, sheet material, and installation procedure may affect performance.
Performance testing this product in your application is recommended. We will be happy to provide technical assistance and/or samples for
this purpose.

PennEngineering • www.pemnet.com PF-39

CAPTIVE PANEL SCREW PERFORMANCE DATA(1)

METRIC

UNIFIED

SCBR™ FASTENERS
Rec.
Tightening
Torque
(in. lbs.) (2)

Test Sheet Material
Min.		
5052-H34 Aluminum
Cold-rolled Steel
Screw		
Tensile
Installation
Pushout
Installation
(lbs.)
(lbs.)
(lbs.)
(lbs.)

Type

Thread
Code

SCBR

440

5

590

1900

130

2600

145

SCBR

632

9

990

2000

175

3500

200

SCBR

832

17

1460

2250

225

3825

260

Thread
Code

Rec.
Tightening
Torque
(N • m) (2)

SCBR

M3

0.74

3400

8

580

12

650

SCBR

M4

1.7

5700

10

1000

17

1150

Type

Test Sheet Material
Min.		
5052-H34 Aluminum
Cold-rolled Steel
Screw		
Tensile
Installation
Pushout
Installation
(N)
(kN)
(N)
(kN)

Pushout
(lbs.)

Pushout
(N)

Rec.
Tightening
Torque
(in. lbs.) (2)

Test Sheet Material
Min.		
5052-H34 Aluminum
Cold-rolled Steel
Screw		
Tensile
Installation
Pushout
Installation
(lbs.)
(lbs.)
(lbs.)
(lbs.)

Type

Thread
Code

SCB / SCBJ

440

5

590

1900

130

2600

145

SCB / SCBJ

632

9

990

2000

175

3500

200

Thread
Code

Rec.
Tightening
Torque
(N • m) (2)

SCB / SCBJ

M3

0.74

3400

8

580

12

650

SCB / SCBJ

M4

1.7

5700

10

1000

17

1150

METRIC

UNIFIED

HSCB™ FASTENERS
Type

Thread
Code

HSCB
HSCB

Test Sheet Material
Aluminum		
Cold-rolled Steel
Installation
(lbs.)

Pushout
(lbs.)

Installation
(lbs.)

Pushout
(lbs.)

440

1900

60

2600

80

632

2000

90

3500

120

Type

Thread
Code

HSCB

M3

Pushout
(lbs.)

Pushout
(N)

HSR™ FASTENERS

Test Sheet Material
Aluminum		
Cold-rolled Steel
Installation
(kN)

Pushout
(N)

Installation
(kN)

Pushout
(N)

8

265

12

355

UNIFIED

Type

Test Sheet Material
Min.		
5052-H34 Aluminum
Cold-rolled Steel
Screw		
Tensile
Installation
Pushout
Installation
(N)
(kN)
(N)
(kN)

METRIC

METRIC

UNIFIED

SCB™/SCBJ™ FASTENERS

			
Test Sheet Material
Type
Thread
.060” FR-4 Panel
Code
			
Installation		 Pushout
			
(lbs.)		
(lbs.)
HSR

440

400		

65

HSR

632

500		 80

			
Test Sheet Material
Type
Thread
1.5mm FR-4 Panel
Code
			
Installation		 Pushout
			
(kN)		
(N)
HSR

M3

2.2		

290

(1) Published installation forces are for general reference. Actual set-up and confirmation of complete installation should be made by observing
proper seating of fastener as described in the installation steps. Other performance values reported are averages when all proper
installation parameters and procedures are followed. Variations in mounting hole size, sheet material, and installation procedure may affect
performance. Performance testing this product in your application is recommended. We will be happy to provide technical assistance and/
or samples for this purpose.
(2) Torque values shown will produce a preload of 70% minimum tensile (125 ksi / 935 MPa) with nut factor “k” equal to .1

PF-40 PennEngineering • www.pemnet.com

CAPTIVE PANEL SCREW PERFORMANCE DATA(1)
PR10™ FASTENERS
Test Sheet Material

PR10

Thread
Code

Test Sheet Material

Aluminum

Cold-Rolled Steel

Installation
(lbs.)

Installation
(lbs.)

2100
2100
2100
2400

3000
3000
3600
4200

440
632
832
032

Type

METRIC

UNIFIED

Type

Aluminum

Cold-Rolled Steel

Installation
(kN)

Installation
(kN)

M3
M4
M5

9.3
9.3
10.7

13.3
16
18.7

Thread
Code

Aluminum

Thread
Code

PR10

N10™ FASTENERS
Test Sheet Material

N10

Thread
Code

Test Sheet Material
Cold-Rolled Steel

Installation
(lbs.)

Pushout
(lbs.)

Installation
(lbs.)

Pushout
(lbs.)

2500
2500
3000
3500

95
105
110
120

3600
4000
5000
6300

130
145
180
200

440
632
832
032

Type

METRIC

UNIFIED

Type

Aluminum

Installation
(kN)

Pushout
(N)

Installation
(kN)

Pushout
(N)

11.1
13.3
15.6

423
489
534

16
22.2
28

578
800
890

M3
M4
M5

N10

Cold-Rolled Steel

Min.
Tensile
Strength
(lbs.)

Rec.
Tightening
Torque
(in. lbs.) (3)

Test Sheet Material
.060” P.C. Board
Pull-off
(4)
(lbs.)

SMTPFLSM-440

556

4.4

100

SMTPFLSM-632

724

7.0

105

		
Type and
Thread Size
		

METRIC

UNIFIED

REELFAST® SMTPFLSM™ FASTENERS(2)
Min.
Tensile
Strength
(N)

Rec.
Tightening
Torque
(N•m) (3)

Test Sheet Material
1.5 mm P.C. Board
Pull-off
(4)
(N)

SMTPFLSM-M3

2900

0.61

445

SMTPFLSM-M3.5

3269

0.8

465

		
Type and
Thread Size
		

TESTING CONDITIONS FOR SMTPFLSM FASTENERS AND SMTPR RETAINER

REELFAST® SMTPR™ RETAINER

(2)

Test Sheet Material

		
Part
Number

.062” Single Layer RF-4

		

Pushout
(lbs.)

Pushout
(N)

SMTPR-6-1ET

161.4

718

Oven
High Temp
Spokes
Board Finish
Screen Printer
Vias
Paste
Stencil

Quad ZCR convection oven
473˚F / 245˚C
2 Spoke Pattern
62% Sn, 38% Pb
Ragin Manual Printer
None
Amtech NC559LF Sn96.5/3.0Ag/0.5Cu (SAC305) (SMTPR)
Alpha CVP-390 Sn96.5/3.0Ag/0.5Cu (SAC305) (SMTPFLSM)
.0067” / 0.17 mm thick (SMTPR)
.005” / 0.13 mm thick (SMTPFLSM)

Test Sheet Material
		
		
Type
Thread		 FR-4 Fiberglass
		
Code
Installation		 Pushout
			
(lbs.)		(lbs.)
		

PFK

440
632

250		 55
400		 60

METRIC

UNIFIED

PFK™ FASTENERS
Test Sheet Material
				
Type
Thread		 FR-4 Fiberglass
		 Code
Installation		 Pushout
			
(kN)		(N)
PFK

M3

1.1		 245

(1) Published installation forces are for general reference. Actual set-up and confirmation of complete installation should be made by observing
proper seating of fastener as described in the installation steps. Other performance values reported are averages when all proper installation
parameters and procedures are followed. Variations in mounting hole size, sheet material, and installation procedure may affect performance.
Performance testing this product in your application is recommended. We will be happy to provide technical assistance and/or samples for
this purpose.
(2) With lead-free paste. Average values of 30 test points. The data presented here is for general comparison purposes only. Actual performance is
dependent upon application variables. We will be happy to provide samples for you to install. If required, we can also test your installed hardware and
provide you with the performance data specific to your application.
(3) Torque values shown will produce a preload of 70% minimum tensile with a nut factor “k” equal to .1.
(4) Failure occurred at the solder joint. Screw retention strength is greater than the retainer.

PennEngineering • www.pemnet.com PF-41

CAPTIVE PANEL SCREW CAPABILITIES
MOST COMMONLY USED AND RECOMMENDED CAPTIVE MATING HARDWARE
FOR USE WITH CAPTIVE PANEL SCREWS
SELF-CLINCHING NUTS MATED WITH CAPTIVE PANEL SCREW
(See PEM® Bulletin CL)
• S/CLS/SS/CLSS provide load-bearing threads in thin sheets with high pushout and torque-out resistance.
• SP nuts provide load-bearing threads in stainless steel sheets with a hardness of HRB 90 (Rockwell “B”
scale) / HB 192 (Hardness Brinell) or less.
• CLA aluminum nuts are recommended for aluminum sheets with a hardness of HRB 50 (Rockwell “B”
scale) / HB 89 (Hardness Brinell) or less.
• SMPS nuts are for installation into ultra-thin sheets and can be mounted closer to the edge of a sheet than
other self-clinching nuts.
• SL nuts have a unique TRI-DENT® locking feature which meets demanding locking performance requirements.

AS/AC/A4 FLOATING NUTS MATED WITH CAPTIVE PANEL SCREW
(See PEM® Bulletin ALA)
• AS (carbon steel) and AC (300 series stainless steel) floating nuts install into sheets with hardness up to HRB
70 / HB 125 on the Rockwell “B” scale.
• A4 (400 series stainless steel) floating nuts install into sheets with hardness up to HRB 88 / HB 183 on the
Rockwell “B” scale.
• Thread locking versions also available.

B/BS BLIND NUTS MATED WITH CAPTIVE PANEL SCREW
(See PEM® Bulletin B)
• B/BS nuts are used in applications requiring closed thread ends.
• Provides barrier to protect threads against foreign matter.
• Protects internal components from intrusion of screws.

F FLUSH NUTS MATED WITH CAPTIVE PANEL SCREW
(See PEM® Bulletin F)
• Designed to be completely flush in sheets as thin as .060”/1.5mm.
• Ideal for applications where a thin sheet requires load-bearing threads but still must remain smooth, with no
protrusions on either surface.
• The hexagonal head ensures high axial and torsional strength.
• F nuts can be ordered to conform to US NASM45938/4 specifications.

PC BOARD NUTS MATED WITH CAPTIVE PANEL SCREW
(See PEM® Bulletin K)
• KF2/KFS2 broaching nuts utilize specially formed axially groves that can be mounted into a hole to provide a
permanent, strong, threaded attachment point in PC boards.
• SMTSO surface mount nuts also available.

For the best mating hardware for your application please contact our Tech Support line or your local representative.

PF-42 PennEngineering • www.pemnet.com

PEM® FASTENER IDENTIFICATION AND TRADEMARKS

To be sure that you are getting genuine PEM® brand fasteners, look for the unique PEM product markings and identifiers.

PEM C.A.P.S.
Dot Pattern

Skirted Shoulder
Identifier

“PEM” Stamp

(Trademark)
PF11PM

(Registered Trademark)
PF11, PF11M, PF11MF,
PF11MW, PF11PM, PF12,
PF12M, PF12MF,
PF12MW, PF7M, PF7MF

(Registered
Trademark)
PSHP

Double
Squares

(Registered
Trademark)
F10

Single
Groove

(Registered Trademark)
PFC4

Dimple

Two Groove

(Registered Trademark)
PF10, PF30, PF31, PF32, PF50, PF51, PF52, PF60, PF61, PF62,
PF11, PF11M, PF11MF, PF11MW, PF11PM, PF12, PF12M, PF12MF,
PF12MW, PF7M, PF7MF, PFC2, PFC2P, PFC4, PFHV, PFK, PFS2,
PSHP, SCB, SCBJ, SCBR

(Registered Trademark)
PF7M, PF7MF, N10, HSR

Blue Retaining
Ring

(Trademark)
PFC4, PFC2P, PFC2,
PFS2, PFK

These panel fastener styles are protected by U.S. patents:

No. 6,814,530

No. D656,392S

No. D603,693S

Fastener drawings
and models are
available at
www.pemnet.com

PennEngineering • www.pemnet.com PF-43

All PEM® products meet our stringent quality standards. If you require additional industry or other specific quality certifications, special procedures and/or part
numbers are required. Please contact your local sales office or representative for further information.
Regulatory compliance information is available in Technical Support section of our website. Specifications subject to change without notice. See our website for the
most current version of this bulletin.

North America: Danboro, Pennsylvania USA • E-mail: info@pemnet.com • Tel: +1-215-766-8853 • 800-237-4736 (USA)
Europe: Galway, Ireland • E-mail: europe@pemnet.com • Tel: +353-91-751714
Asia/Pacific: Singapore • E-mail: singapore@pemnet.com • Tel: +65-6-745-0660
Shanghai, China • E-mail: china@pemnet.com • Tel: +86-21-5868-3688
PF-44

Visit our PEMNET™ Resource Center at www.pemnet.com • Technical support e-mail: techsupport@pemnet.com



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