Arrow AM27 Institutional Motrise Knob Lock

Arrow AM27 Institutional 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 AM27 Institutional Knob Lock: Latchbolt by knob/lever either side, except when Privacy outside is locked by turnpiece inside. Operating inside knob/lever or closing door unlocks outside. Key outside retracts latch at all times, even if thumbturn is held in locked position. 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