This lock cylinder by prime-line products is constructed of diecast materials and comes in a satin nickel finish. This lock features a large thumb turn for easy activation of the lock, a keyed cylinder for accessing from the exterior, and a night latch to prevent tampering. This is a spring-loaded, hold-open lock designed with automatic locking. Features a 5-pin tumbler cylinder, and requires a 1-1/4 in. Bore for mounting. Uses a Kwikset keyway. For use on 1-3/8 in. to 2-3/8 in. thick doors, with a 2-9/32 in. Backset.