First Watch 1120 Single Cylinder Interlocking Deadbolt

Deadbolt with tamper-resistant shutter guard. This lock secures your door to the door jamb in order to prevent forced entry into your home. It includes the single cylinder locking device and the interlocking strike it attaches to, as well as a tamper-resistant shutter guard for extra security. 5-pin tumbler with hardened steel pins. Single cylinder locking unit and strike. Locks door to jamb to prevent forced entry. Requires a 1.25″ hole. 2 keys included.