Deadbolt for Hercular Single Cylinder Bright Brass Thumb Turn

The Mul-T-Lock HD1 Hercular is a high-security deadbolt system designed for commercial and residential doors. Its key features are as follows:

Operation: The 90-degree key rotation throws the bolt 1" towards the frame, interlocking two hardened ball bearings with the strike to increase resistance against jimmying.

Materials: The lock is constructed with solid brass rings and cylinder, hardened steel bolt and anti-drilling ring, steel strike, and nickel silver & stainless steel pins.

Adjustability: The lock is suitable and adjustable for two different backsets (2 3/8" or 2 3/4"), eliminating the need for different parts. It also allows for easy conversion between standard and drive-in installations.

Standard Configuration: The lock is supplied with a 1" throw as standard.

Thumbturn Tail: The thumbturn tail is self-adjustable to accommodate various door thicknesses.

Cylinder Mechanism: The lock features the Mul-T-Lock unique, high-precision telescopic pin tumbler system, which is pick and drill resistant for high-security needs.

Certifications: The lock is UL437 listed for burglary, has a UL fire-rated bolt, and is ANSI Grade 1 certified.

Key System: The lock comes with two Interactive Plus keys, and a control card is required to obtain any additional keys.

In summary, the Mul-T-Lock HD1 Hercular is a high-security deadbolt system that combines advanced features and materials to provide exceptional protection for commercial and residential doors. Its adjustable backset, self-adjustable thumbturn tail, and unique cylinder mechanism make it a versatile and secure choice for a wide range of applications.

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