Carlisle Brass Flush Bolt Socket AA813SN Flush Bolt Socket designed for use with the bottom bolt of all flush bolts Flush Bolt Socket Function - is sometimes referred to as a floor socket, dust excluding socket, dust socket for flush bolts. Features: Can be placed in the floor to allow the door to be secured in a closed or open position when used in conjunction with flush or surface door bolts The internal curvature enables easy cleaning and allows the door bolt to easily engage into the socket Specifications: Length: 62mm Width: 19mm Depth: 25.5mm Finish: Satin Nickel