The Gloss Black Dust Proof Keeper Locking Option is a component designed for use with door rail floor locks, locking ladder pulls, and patch locks. This keeper is compatible with devices featuring a 5/8" diameter plunger bolt. It is constructed for installation in floor surfaces and requires a 1" diameter hole drilled 2" deep into the floor. The keeper includes a mounting plate and is supplied with two flat head screws for installation. This locking model is finished in a gloss black coating. The dust proof keeper is engineered to work with 777S, 777SL, or 777EC Door Rail Floor Locks, as well as locking ladder pulls and the AMR205A Patch Lock. By providing a receptacle for the plunger bolt, it assists in the locking function of glass entrance systems. The unit is designed to be installed directly into the floor, ensuring that the locking mechanism remains protected from debris when not in use. The inclusion of the mounting plate and the necessary flat head screws allows for a straightforward installation process into the floor surface. This keeper is suitable for various architectural and storefront applications where floor-mounted locking is required for glass doors.