Adams Rite MS-1893-36-IB Deadlock / Deadlatch without Faceplate and Strike

The MS-1893-36-IB from Rite is a deadlock / deadlatch without faceplate and strike. Maximum Security after hours plus traffic control convenience for management during the business day. Typical installation bank or store requiring three modes of door control: 1. Both lock latch bolts retracted unrestricted entry exit hours, 2. Handle-operated exit-only just closing, 3. hookbolt overnight lockup. NOTE: Handle paddle operates latchbolt only. 360° turn key thumb throws retracts hook-shaped deadlock. 120° further bolt as well. Cylinder may be any make standard 1-5/32" diameter mortise type with MS® dimensioned cam. spring-loaded only.