Locks MS1861 Series Bottom Rail Deadbolt
User Manual: Locks MS1861 Series Bottom Rail Deadbolt Mayflower Sales - Adams Rite
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MS1861 Series
Bottom Rail Deadbolt
Operation
360° turn of key or thumbturn throws or retracts bolt(s). Key
can be removed only when bolts are in a positively locked
or unlocked position. Lock accepts any standard 1-5/32"
diameter mortise cylinder from either or both sides. Cylinder
must have MS® dimensioned cam.
Specifications
CYLINDER BACKSET
• Minimum backset is approximately 2-1/4" for the MS1861-
01 with vertical bolt only. The MS1861-02 with vertical and
horizontal bolts requires placement of cylinder centerline
5-3/4" from nose of door. Both have cylinder center 1-7/8"
above bottom edge of door.
CASE
• Steel with corrosion-resistant plate, measures 1" x 6" x 1-13/16".
BOLTS
• 3/8" diameter. Stainless steel vertical threshold bolt has
13/16" throw. Hardened steel horizontal bolt has 1-1/8" throw.
STRIKES
• In metal installation, 7/16" drilled holes in threshold are
required. For MS1861-02, drilled holes are also required in
jamb or opposite door. For wood, metal plate with 7/16" hole
must be provided for each bolt.
CYLINDER CAM
• MS1861 Bottom Rail Deadbolts are operable by any standard
1-5/32" diameter mortise cylinder with MS® cam dimensioned
as shown. Cylinders with MS® cams can be readily obtained
from most cylinder manufacturers. See CYLINDERS section
for cylinder make, thumbturn and trim ring information.
STANDARD PACKAGE
• Individually boxed with mounting screws. Cylinders and/or
thumbturns available separately. Shipping weight:
MS1861-01: 1-3/4 lbs., MS1861-02: 2 lbs.
MS1861 SERIES BOTTOM RAIL DEADBOLT
FULL GLASSGRADE 1
E8211
The MS1861 Bottom Rail Deadbolt provides maximum
security with MS deadbolt over-center/pivot locking
mechanism. It utilizes hardened steel bolts for the limited
space of ultra-narrow stile doors.
Function
Using the same over-center/pivot locking mechanism as the basic MS®
deadbolt, the MS1861 lies horizontally in the bottom rail of ultra-narrow stile
doors which have insufficient vertical space for a lock, and tempered glass
doors which have no stile at all. The hardened steel cylindrical bolts allow
simple drilled strike holes of a relatively small size to minimize the nuisance
and danger presented by some threshold strikes in collecting debris or
snagging on high-heeled shoes. MS1861-02 locks either single-leaf or pairs
of doors. Not recommended for wood doors.
B
LOCK CASE
CAM
TR
A
DOOR CENTERLINE
*TOLERANCE: ± 1/16
DOOR STILE
TRIM RING
CYLINDER
TR* = A + .125
– B
TR* = A + .132
– B
FOR MS
®
LOCKS: FOR 4500 SERIES LATCHES:
“Dim A”
R
R
1830
2190
2290
MS1837
MS1850S
MS1850SN
MS1861
MS1950
1875
MS +1890
4300
4510
4530
4900
4781
4920AN
8300
8400
8650
DEADLOCK
DEADLATCH
SERIES
SERIES
EXIT
DEVICES
1870
1870HM
1877
3080
3090
FLUSHBOLTS
TRIM
THIS CAM AVAILABLE FROM:
ADAMS RITE
ARROW
ASSA
BEST
CORBIN RUSSWIN
DORMA
FALCON
KABA-ILCO
MEDECO
SARGENT
SCHLAGE
WEISER
YALE
.120"
3.0mm .182"
4.6mm
.334"
8.5mm
.620"
15.7mm
R
.721"
18.3mm
.950"
24.1mm
.334"
8.5mm
.800" ± .005"
20.3mm ± .127mm
.850" ± .005"
21.6mm ± .127mm
THIS CAM AVAILABLE
FROM ABOVE CYLINDER
MANUFACTURERS
ON SPECIAL ORDER
(OR MAKE FROM
STANDARD CAM)
THIS CAM AVAILABLE
FROM ALL CYLINDER
MANUFACTURERS
(STANDARD CAM)
Narrow stile doors require a trim ring to fill the gap remaining between the cylinder
shoulder and stile when a standard mortise cylinder is used. If the security of the
hardened steel Adams Rite MS4043 Cylinder Guard is not required, this ring may be
simply a length of 1.171 I.D. tubing. Its length varies depending on door thickness or
cylinder make and number of pins. The specific length required can be quickly
determined by the following formula:
DIMENSIONS OF CAM TO OPERATE:
DIMENSIONS OF CAM
TO OPERATE:
4070 SERIES DEADBOLT
DIMENSIONS OF CAM
TO OPERATE:
2331 DEADBOLT
CYLINDER TRIM RING FOR NARROW STILES
“
TR
” is trim ring length.
“
A
” is cylinder height (less shoulder but including cam).
“
B
” is one-half of door thickness.
MS1861-01
MS1861-02
800.872.3267 • Fax 800.232.7329
10027 S. 51st Street, Ste 102
Phoenix, Arizona 85044
www.adamsrite.com
ARM-014-9/14
DEADLOCKS DL-17
UNIT ILLUSTRATED IS MS1861-02. (BOTH HORIZONTAL & VERTICAL BOLTS INCLUDED.)
PART NUMBER FOR VERTICAL BOLT OPERATION ONLY IS MS1861-01. CONVERSION KIT
NO. 4014 AVAILABLE TO CONVERT MS1861-01 TO MS1861-02. SEE BELOW:
3/4"
19.1mm 1"
25.4mm
63/64"
25mm
1"
25.4mm
1-1/4"
31.8mm
3/8"
9.5mm
2-1/2"
63.5mm
1-11/16"
42.9mm
1-55/64"
47.2mm
3-5/8"
92.1mm
5-25/64"
136.9mm
7-15/16"
201.6mm
3/8"
9.5mm
1
3
4
2
1-1/8"
21.6mm
4"
101.6mm
9/16"
14.3mm
BOTTOM RAIL
MTG. WEB
TUBE
SPACER
#10-32
DRILL & TAP
TYP.
DIA.
7/16"
11.1mm
1/4"
6.4mm
1/2"
12.7mm
9/16"
14.3mm
7-1/4"
184.2mm
6-1/8"
155.6mm
4"
101.6mm
2"
50.8mm
DIA.
5-49/64"
146.4mm
BACKSET
#8-32
DRILL & TAP
TYP.
CYLINDER
MIN.
CHANNEL
DEPTH
THROW
DIA.
BOTTOM
OF DOOR
RAIL
WITHOUT
WEB
TUBE SPACERS MAY BE REQUIRED
TO POSITION LOCK MECHANISM.
BOTTOM DOOR RAILS WITH WEB WILL
REQUIRE MACHINING AS SHOWN. POSITION
OF WEB WILL DETERMINE TUBE SPACER
REQUIREMENT AND TUBE SPACER LENGTH.
MS1861 SERIES BOTTOM RAIL DEADBOLT
Dimensions Rail Preparation
Lock & Cylinder Installation
HOW TO ORDER MS1861 SERIES BOTTOM RAIL DEADBOLT
Specify quantity and the following information. Order related products separately.
PRODUCT NO. BOLT OPERATION FINISH PACKAGING
MS1861 -01 -603 -IB
01 Vertical Bolt Only 603 Zinc plated steel IB Individually Boxed
02 Vertical and Horizontal Bolts
If tube spacers are required, specify QUANTITY and LENGTH.
RELATED PRODUCTS When purchasing this product, please consider the following related products, available separately:
Accessories Cylinders
4014 Conversion Kit for multi-point locking applications or it can be
ordered with vertical and horizontal bolts (Bolt Operation option 2).
MS1861 Bottom Rail Deadbolts are operable by any standard 1-5/32"
diameter mortise cylinder with MS® cam.
FOR MS1861-02
4014 Conversion Kit
To convert MS1861-01 to MS1861-02, 4014 Conversion Kit provides
horizontal bolt assembly with guide and attachment fittings.
The 4014 Conversion Kit consists of:
1 Arm & Bolt Assembly
2 Assembly Pin
3 Bolt Guide Bracket
4 Mounting Screws
To assemble, press pin through disc and arm.
DL-18 DEADLOCKS
All measurements are approximate and are provided for informational purposes only. Refer to the product Installation Instructions.
©2014, Hanchett Entry Systems, Inc., an ASSA ABLOY Group company.
