Mul-t-lock Hercular Single Cylinder deadbolt With Thumb turn

High Security deadbolt system for commercial and residential doors. 90˚ key rotation throws the bolt 1" towards the frame, interlocking two hardened ball bearings with the strike to increase jimmying resistance. Adjustable backset 2-3/8 or 2-3/4 , no need for different parts Bright Brass US3 Finish or Chrome 26D Finish Interative+ Key System, Locks Supplied Keyed Different with 2 keys - Control Card Required for Duplicate Keys It takes little more than a screwdriver or a credit card to open most conventional locks. The Mul-T-Lock Hercular deadbolt has passed or been proven superior to all other deadbolts on the market. The two ball bearings within a Mul-T-Lock deadbolt interlock make it more difficult to pick or break the lock. There are a few different configurations for these deadbolts to choose from. Need a high-security lock that won't compromise the aesthetics of your designer door hardware? The answer is here, with this product! High-security cylinders from Mul-T-Lock are compa