Arrow BM21 Front Door Mortise Lever Lock

Arrow BM21 Front Door Mortise Lever Lock. Arrow BM Series Lever Mortise Locks are intended for heavy duty use in schools, hospitals and commercial buildings where security, durability and low maintenance are required. They are engineered for strength and  performance, and precisely manufactured to exacting standards. Arrow BM21 Front Door Mortise Lever Lock: Latchbolt operated by knob/lever either side except when outside knob/lever is locked by stopworks in lock front. Deadbolt is operated by turnpiece inside. Auxiliary latchbolt deadlocks latchbolt. Key outside operates both bolts.  Handing – Handed; field reversible. The lockset can be re-handed without disassembling the lock case. Door Thickness – 1-3/4" (4mm) standard. Backset – 2-3/4" (70mm). Lockcase – Heavy gauge steel, with zinc dichromate finish for corrosion resistance. 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm). Armored Front – Heavy gauge steel, 8" (203 mm) x 1-1/4" (32mm) x 3/32" (2mm). Accommodates fla