Hookbolts also vary from deadlocks with it's application. On a deadlock the bolt is a straight bolt, but on a hook bolt the bolt is shaped like a hook. It operates and functions exactly the same as the deadlock with the main difference being the shape of the bolt. HookboltEssentially a hookbolt lock is a type of deadlock. Bevel right or left face plates are typically only used on storefront door lock stiles that are beveled. The flat and radius weatherstrip faceplates are what you most commonly see on storefront doors. The only difference is you are rotating a thumbturn rather than a key.ĭeadlock FaceplatesDeadlocks feature 5 types of faceplates to choose from: Flat, radius, bevel right, bevel left, and radius weather strip. The process is the exact same when locking or unlocking the door using the thumbturn lock cylinder. To unlock the door and return the straight bolt back into the deadlock body, the key can simply be rotated 360 degrees counter-clockwise. Once the deadlock is in the locked position the straight bolt is completely projected deep into the door frame, securing the door from moving. When the straight bolt projects out and approaches the fully engaged lock position, it goes into a receiving hole located in the door frame. The key must be turned 360 degrees so that the cam pushes the pivot pin and seats it in the engaged or locked position. If you were to push down on the straight bolt, it would move freely. Although the straight bolt is projected from the deadlock body, it is not actually secured in the lock position. If the key is only turned 300 degrees, then the pivot pin is not pushed far enough to be seated in the lock position. This means the key must turn a full 360 degrees. It is important to note that in order for the storefront door deadlock to be completely locked, the pivot pin that the cam pushes against must be fully engaged and seated. When the key is turned a full 360 degrees then the cam has fully pushed the pivot pin in the locked position, and the straight bolt is fully engaged in the lock position. So as the key turns, the cam rotates and pushes against the pivot pin, projecting the straight bolt out of the lock body. This pin is commonly referred to as a pivot pin because it is attached to the straight bolt, and as the pin moves it pivots the straight bolt outward towards the locked position. As the cam rotates it strikes and pushes against a pin. This occurs because on the backside of the mortise lock cylinder is a cam which rotates according to how much the key in the lock cylinder is turned. 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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