SWINGING DOOR HARDWARE
Cylinder-Operated
Flushbolt
For Wood Doors
1877
SW-20
Cylinder Backset
1-1/4” only.
Cylinder Height
Standard length (cylinder center to
door edge) is 13-1/2“. Other lengths
available on special order.
Case
Steel with corrosion-resistant
plating. 1“ x 6” x 1-29/32”.
Function
Designed for use instead of conventional flip-lever
operated flushbolts, the 1877 gives building management
key control of the inactive leaf of paired doors. Prevents
casual locking of the inactive leaf by children or other
unauthorized persons. Uses same basic overcenter action
mechanism as MS pivoted bolt locks. Recommended for
installation at both top and bottom of inactive door with
MS1837 in active door for greatest security.
®
MAY BE INSTALLED TO
LOCK AT THRESHOLD
OR AT HEADER.
Armored Faceplate
1-1/4“ x 15-3/8”. Finish: US28 Clear Anodized (628).
Contact factory for other available finishes, including
brass.
Bolt
Hexagonal 3/8“ flat to flat, with 11/16” throw. Made of
stainless steel.
Strike
2-1/4“ x 15/16” strike is supplied.
Operation
o
360 turn of key throws or retracts hardened hex-section
bolt. Key can be removed only when bolt is in a positively
locked or unlocked position. Accepts any standard 1-5/32“
mortise cylinder from either or both sides. Cylinder must
have MS cam. (See page SW-33.)
®
260 Santa Fe Street
Pomona, California 91767
( ) ( )
800 872-3267 Fax: 800 232-7329
www.adamsrite.com
1877 Flushbolt
For Wood Doors
DIMENSIONS
INCHES
Nominal, subject to tolerance extremes.
1-1/4
31.8
FACEPLATE
1
25.4
LOCK MTG
PLATE
MILLIMETERS
1/4
6.4
15-5/8
396.9
1-29/32
48.4
1-1/4
31.8
BACKSET
13-1/2
342.9
STANDARD
CYLINDER
HEIGHT
INSTALLATION
FOR INSTALLATION
LOCKING THRESHOLD.
INVERT FOR HEADER LOCKING
#12 x 1-1/4"
FLAT HEAD
WOOD SCREW
#8-32 x 1/4"
FLAT HEAD
MACHINE
SCREWS (2)
(M4-0.8 x 6.0)
#12 x 3"
FLAT HEAD
WOOD
SCREW
1/8
3.2
1/8
3.2
2-1/8
54.1
7/8
22.2
C
1-1/4
31.75
1/2
12.7
L
10-1/2
266.7
50.8
1
25.4
1-1/4
31.75
DIA.
2
PROJECTION
CAM TOLERANCE:
+
_
.800
20.32
C
CYLINDER
L
+
_
.120 R
3.05
.005
.13
.182
4.62
1877 locks are operable by any standard
1-5/32“ diameter mortise cylinder with
special MS cam dimensioned as shown.
Cylinders with MS cams can be readily
o b t a i ne d f r o m m o s t c y l i n d e r
manufacturers. See page SW-33 for
cylinder make and trim ring information.
HOW TO ORDER
Specify quantity and catalog number.
Order related hardware separately.
1877 - 628
©2008 ADAMS RITE MANUFACTURING CO.
5/8
15.88
BOLT
BOLT GUIDE
BOTTOM EDGE OF DOOR
3/4
19.1
Cylinder Cam
®
BOLT GUIDE
3-1/4
82.6
®
628
313
Anodized
605
1
25.4
Finish
Clear Anodized
Dark Bronze
Bright Brass
1-1/4
31.8
1/4
6.4
3-3/8
#6 x 3/4"
FLAT HEAD
WOOD
SCREWS (4)
(M3.5 x 19.0)
NOSE OF
DOOR
STRIKE
3/4
19.1
1-1/4
31.8
5/8
DIA.
15.88
DRILL & TAP
8-32 THREAD
(2 PLCS)
1-5/8
41.3
13/16
20.6
85.8
BOLT
GUIDE
#8 x 1"
FLAT HEAD
WOOD
SCREWS (3)
(M4.0 x 25.0)
STANDARD PACKAGE
Basic lock mechanism boxed with actuator arm attached,
rod/bolt assembly unattached. Stainless steel bolt guide,
mounting screws and installation instructions included.
Cylinders available at extra cost. Shipping weight: 1-1/4 lbs.
Loading...