A hardware apparatus includes a base portion formed by a disc-shaped base plate and a cylindrical member. The cylindrical member includes a first threaded surface. The disc-shaped base plate includes a first opening and the cylindrical member includes a second opening, with the first and second openings being concentric. The hardware apparatus further includes a cap portion including a second threaded surface. The cap portion is attachable to said base portion through engagement of the first and second threaded surfaces. In one implementation, the first threaded surface is an outer surface and the second threaded surface is an inner surface. In an alternative implementation, the second threaded surface is an outer surface and the first threaded surface is an inner surface.