SS Mortice Lock is commonly used in doors. It is known for its durability, security, and classic design. It consist of several components that work together to provide effective locking and unlocking functions. Mortice Lock Function - where the deadbolt locks by a key on both the exterior and interior of the lock. Latch is activated by turning the key or lever handle if fitted Features: High Security Mortice Lock Features 2 stage bolt throw Latch retracts on key 85mm Pitch (distance between cylinder hole and spindle hole) Specifications: Backset: 45 Case Size: 71mm Finish: Stainless Steel