ENTRANCE & STOREROOM INTERIOR MORTISE LOCK - 2 3/4" BACKSET- Latch bolt by knob either side. Deadbolt by key outside and turn piece inside. 1" (25mm) throw Deadbolt with saw-proof inserts is standard equipment. When extended, Deadbolt deadlocks latch bolt.
FSE: ANSI Series: 1000-F21
NOTE: For single and double cylinder applications.
WARNING: DO NOT USE lever strength mortise locks with knobs. They only turn one way and have a stiff turning action suitable for levers.