what is a flush bolt
Bolts are mechanisms that keep doors secure, and locked. Flush bolts are a particular type of bolt that is flush, or even, with the side of the door.A manual flush bolt requires someone to lock, and unlock it manually. An automatic flush bolt depends on the opening, and closing of a double door to operate properly.olts are mechanisms that keep doors secure, and locked. Flush bolts are a particular type of bolt that is flush, or even, with the side of the door.