MUL-T-LOCK Key Deposit Lock Cylinder Safe Mul-T-Lock’s MT5+ key design has

Mul-T-Lock’s MT5+ key design has long been a distinguishing facet of our commitment to high security

For door thickness 35-80 mm

Easily switched from a key-retaining to a non-key-retaining configuration

If that weren't enough

MUL-T-LOCK Hercular Captive Key Deadbolt (Interactive)

MUL-T-LOCK Key Deposit Lock Cylinder Safe Mul-T-Lock’s MT5+ key design hasApplication: Key deposit box Operation: 90 cam rotation by operating key. Material: Brass body and plug, Steel cam, Nickel Silver and Stainless Steel pins. Cylinder Mechanism: Mul t lock unique, high precision telescopic pin tumbler system. Pick and drill resistant for high security needs.