https://www.openlearning.com/u..../stenderhill-slyvls/
https://vang-bateman-3.technet....bloggers.de/11-creat
Types of Deadlocks for Doors Hook bolt deadlocks are used on storefronts with narrow stiles made of aluminum sliding doors to enhance security and strength of the lock. The locks are locked on both sides to allow greater flexibility in access control. To measure accurately for the new lock, first determine the door's case thickness (or backset). This is the distance between the edge of the front door and
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