Grade 1 Mul-T-Lock Hercular Single Cylinder Deadbolt

The Mul-T-Lock Hercular Hercular Single Cylinder Deadbolt is a Grade 1 security door hardware unit designed for high-security applications.

This Hercular Deadbolt is UL437 Listed and features a strong latch and bolt bearing mechanism. It is notable for being one of the few Grade 1 deadbolts with an adjustable backset.

This Single Cylinder unit is operable with a key from the exterior and a thumb turn from the interior. Available in seven finishes, it includes two keys and an owner key card.

Also available: Hercular Double Cylinder Deadbolt - Hercular Double Cylinder Captive Key Deadbolt Please see our guide on how to choose the best deadbolt