Mul-t-lock Hercular Single Cylinder Deadbolt with Thumb Turn - Antique Brass

The Mul-t-lock high-security deadbolt system is designed for commercial and residential doors, boasting a range of features that enhance its security and functionality. The key rotation of 90 degrees throws the 1-inch bolt towards the frame, interlocking two hardened ball bearings with the strike to increase resistance against jimmying. The construction utilizes solid brass rings and cylinders, hardened steel bolts and anti-drilling rings, as well as a steel strike, nickel silver, and stainless steel pins.

One of the notable advantages of this system is its suitability for two different backsets, eliminating the need for different parts. The easy conversion between standard and drive-in configurations further adds to its versatility. The system is supplied with a standard 1-inch bolt throw, and the thumbturn tail is self-adjustable to accommodate varying door thicknesses.

The Mul-t-lock cylinder mechanism features a unique, high-precision telescopic pin tumbler system that provides exceptional pick and drill resistance, ensuring a high level of security. The system is UL437-listed for burglary protection, and the bolt is UL fire-rated, meeting ANSI Grade 1 standards.

Each Mul-t-lock item comes standard with two keys and a Mul-lock key code identification card, providing users with additional security measures and convenient access. This comprehensive high-security deadbolt system offers a robust and reliable solution for commercial and residential door security, combining advanced features, durable construction, and compliance with industry-leading standards.

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