Abstract: A self-centering surface bolt comprising two or more keepers, a surface bolt and two or more guides. The guides further comprise a base, a stem and a cap. The base of the guide is received within a recess in the keepers and the stem and cap of the guides are received within a channel in the surface bolt. The guides are symmetrical with respect to the channel of the surface bolt. Thus, regardless of the position of the guide with respect to the keepers or the surface bolt, the guides will have the same apparent cross section and will center the surface bolt within the keepers without resulting in the surface bolt binding with respect to the guides.

Abstract: A rose retaining system comprising a mounting plate, rose, rose mounting screw and washer. The mounting plate is mounted to the door by screws passing through holes in the mounting plate. The rose plate is mounted to the mounting plate by the rose mounting screw. The rose mounting screw has a externally threaded tubular portion which passes through the center of the rose and is threaded into the internally threaded tubular projection of the mounting plate. The rose mounting screw is threaded until the slotted collar contacts the recessed shoulder of the rose plate. The key is then used to tightened the rose mounting screw, securing the rose plate in the desired position. The key can be used whether or not the spindle is mounted through the axially aligned openings of the mounting plate, rose and rose mounting screw. After mounting is completed, the exterior surface of the collar of the rose mounting screw is recessed below the outer surface of the rose mounting plate.