Hercular^® Deadbolts

Mul-T-Lock's High Security Hercular® Grade 1 Deadbolt has a robust and unique design that is reinforced in just about every possible way to offer the best deadbolt protection available. Featuring hardened steel inserts and parts reinforced with some of the strongest-available materials, as well as a unique interlocking ball bearing mechanism which locks the bolt into the door frame, the Hercular® deadbolt provides top protection against tampering, prying, drilling, kicking and more.