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281 Series
Closer with Regular Arms
Installation Instructions
Using Mortise Nuts with Sargent Door Closers
NOTES:
1. See instruction or data sheet packed with door closer for dimensions locating the closer body and foot on door and frame.
2. Mortise nut shown is designed for unreinforced metal doors.
3. For top jamb and corner bracket applications: The door closer foot will be attached to the door in a manner similar to that shown
for mounting the closer body.
4. For doors 2-1/4" thick: Mortise nut shown for 1-3/4" thick doors will be furnished along with appropriate length thru-bolts. Door
construction must provide a bridge type reinforcement to prevent the door rail from collapsing when thru-bolts are tightened.
Sargent 1430 Series Closer Shown
(Other series similar)
Cover
Drill 1/4" Dia. hole
for mounting screws
#12-24 Thread
Mortise Nut
1-11/16" for 1-3/4" thick door
1-5/16" for 1-3/8" thick door
(See Note #4 above for 2-1/4" thick doors)
1-800-727-5477 • www.sargentlock.com
Copyright © 2003, 2008, 2014, 2020, 2022, SARGENT Manufacturing Company. All rights reserved. Reproduction in
whole or in part without the express written permission of SARGENT Manufacturing Company is prohibited. Patent
pending and/or patent www.assaabloydss.com/patents.
Frame
Mortise Nut Head
Door
Drill 3/8" Dia. hole
for Mortise Nut
body.
351 Door closer
shown. (Track assembly
mounting is similar)
9/16"
Dia.
7/64"
Approved 2022-12-08
See Note #1 above for dimension
information. If a dimension is less than
7/8" is used. The door stop must be cut
to clear the Mortise nut head or the
Mortise nut head must be recessed.
(See enlarged view "Y")
Door Stop
351 Door Closer Shown
Shorten Mortise
nut body to this
length
1/4" Dia.
drilled hole
7
1/8"
5/8" Dia. hole
Frame
Door
Stop
Mortise Nut
Head
3/8" Dia. hole
View "Y"
A7278F 12/22 Rev 6
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