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Locks For Doors and Flaps This keyless hook bolt deadlock enhances security and strength of the lock for sliding storefront aluminum doors. Its compact design makes it easy to install and comes with a the manufacturer's lifetime mechanical warranty. the manufacturer. You will need to measure the'stile ' of your door before you install hook-bolt locks. This is the distance from the edge of the door to the start of any panels, glass or embedded decorations. Hook-type latches featuring a ho