![]() When a key is inserted into the key mortise lock cylinder and rotated clockwise 360 degrees, it causes the straight bolt from the deadlock body to project outward into the "locked" position. How A Deadlock WorksThe most common storefront door deadlock set up is when a key mortise lock cylinder is threaded on the exterior side of the storefront door deadlock, and on the interior side is a thumbturn mortise lock cylinder. The deadlock body is designed to be mortised into the storefront door's lock stile. The deadlock face is designed to have a faceplate attached to it. On the face of the deadlock is where the straight bolt projects outward. This is where the mortise lock cylinder or mortise lock thumbturn can be threaded in. At the top of the lock body chassis is a threaded mortise lock cylinder hole on each side of the lock body. For these reasons deadlocks are preferred storefront door lock choice for the majority of storefront doors.ĭeadlock ComponentsA storefront door lock is comprised of a rectangular lock body which houses a straight bolt. ![]() Deadlocks are designed for use on swinging storefront doors and are not used on sliding storefront doors. The thick laminated steel of the deadlock makes it impossible for potential forced entry by cutting with a hacksaw or prying with a crow bar. The heavy duty straight bolt projects 1-3/8" from the lock body for maximum security. It is easy to identify a deadlock because it uses a thick laminated steel straight bolt. In this article we explain the different types of storefront door locks.ĭeadlockThe deadlock is the most common type of storefront door lock. Storefront door locks vary in design but all function with one same goal, and that is to keep the door locked. ![]() ![]() Types Of Storefront Door LocksA storefront door lock is a mechanism which is mortised into the door's lock stile and is designed to project a bolt into the door frame jamb to keep the door secured within the frame. ![]()
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