https://sigmon-braun.mdwrite.n....et/15-terms-everybod
Types of Deadlocks for Doors Hook bolt deadlocks are used on storefronts with narrow stiles made of aluminum sliding doors to increase security and strength of the lock. These locks are keyed on both sides for greater flexibility in access control. To accurately measure a new lock, first determine the door's depth (or backset). This is the distance from the edge of the door to the center of the latch hole. Tubular Latch The tubular latch is the most popular door latch. It's easy to instal