Sargent 489 Exit Deadbolt Thumb Turn With Blank Outside Plate, 2 3/4" Backset

1-3/8" (35mm) to 1-3/4" (44mm) thick standard For doors over 1-3/4" (44mm) consult the factory (2-1/4" Thick door max)

Fits 161 (standard) cutouts and Fits 160 with a 2-3/8" (60mm) backset with 1"(25mm) front and 1-3/8"(35mm) thick door

2-3/4" (70mm) standard. 2-3/8" (60mm) optional (20- option)

Wrought brass, bronze, or stainless steel

Solid steel with hardened steel pin insert and nickel silver plating 7/8" (22mm) x 5/8" (16mm) x 1" (25mm) throw

Brass, 6-pin. 2 nickel silver keys

Can be master-keyed. Construction key system available

Wrought brass, bronze, or stainless steel 2-1/4" (57mm) x 1-1/8" (29mm) with fixed bevel 1/8" (3mm) in 2" (51mm) furnished standard

Non-handed, field reversible

Non-ferrous

Non-ferrous, reinforced, one-piece 2-1/2" (64mm) diameter

housing brass & zinc, two pieces.

Concealed screws on double cylinder function

16- 400 T-shaped strike with strike box

20- 2-3/8" (60mm) backset. 2-3/4" (70mm) x 1" (25mm) wide front

28- 408 Flat lip strike ANSI A115.2

36- 6-Lobe security Head Screw

37- Spanner Head Screw

48- 488 Reinforced strike with 4 mounting screws and strike box