Drive-In Bolt for MUL-T-LOCK Hercular Deadbolt Rotary Hopper The HS-750E recessed curvature provides

The HS-750E recessed curvature provides virtually air tight construction preventing smoke damage during a fire as well

The HS-1400 has the option to switch to a Mechanical Dial lock with no extra charge

Bump Proof High Security Cylinder

Hollon backs the HS-1400 safe with a one year parts and labor warranty along with a lifetime warranty that protects against house fires

Shackle diameter : 5/16"

Drive-In Bolt for MUL-T-LOCK Hercular Deadbolt Rotary Hopper The HS-750E recessed curvature providesThis is an original replacement bolt for MUL T LOCK Hercular deadbolt locks. The drive in bolt is for metal doors in which the bolt is not screwed in like on a wood door but rather driven into place. MUL T LOCK's drive in bolt fits 1 1 8" holes. It can be driven in using a rubber mallet. The bolt features an adjustable backset from 2 3 8" to 2 3 4".