Mul-t-lock MTL600 Hercular® Double Cylinder Captive key Deadbolt

* Captive key can be altered by the user to function as a double or single cylinder deadbolt.

Application: High security deadbolt system for commercial and residential doors.

Operation: 90° key rotation throws the bolt 1" toward the frame, interlocking two hardened ball bearing with the strike to increase jimmying resistance.

Materials: Solid brass rings and cylinder, Hardened Steel bolt and anti drilling ring, Steel strike, Nickel Silver & Stainless Steel pins.

Additional features: Suitable for two back-sets, no need for different parts. Easy conversion between standards and drive in. Supplied as standard with 1" throw.

Cylinder Mechanism: Mul-t-lock unique, high precision telescopic pin tumbler system. Pick and drill resistant for high security needs.

UL437 listed for burglary, UL fire rated bolt, ANSI Grade 1