A "slide bolt" is a type of lock or latch that can be slid into place to secure a door or gate. It is like a long, flat metal bar that connects to one side of the door and can be moved horizontally to lock or unlock the door. Full definition
Includes a convenient carrying handle, and a durable ABS pan for easy cleaning and overlapping security door with sturdy slide bolts. (bestdogcrate.com)
Make sure to use a drill bit size larger than the bolt (1/2 ″ at least), so you can slide the bolt in and out easily when attaching. (shadesofblueinteriors.com)
Safe & secure slide bolt latches for rigidity. (bestdogcrate.com)