Arrow AM37 Classroom Motrise Knob Lock

Arrow AM37 Classroom Knob Lock. Arrow AM Series Knob 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 AM37 Classroom Knob Lock: Latchbolt by knob/lever either side. Except when outside is locked from inside or outside by key. When outside is locked, latchbolt is retracted by key from inside or outside or by operating inside knob/lever. Auxiliary latch deadlocks latchbolt. 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 flat doors and doors