Abstract: An improved cap screw, an improvement in cooperating cap screw and bore configurations and an improved method for retaining decorative cap screws on an object are disclosed. The cap screw comprises a proximate end provided with a decorative configuration and a distal portion provided with frictional retention means for engaging a side wall defining a cap screw bore in an object. The cap screw is configured to be received in a substantially cylindrical bore defined by a substantially cylindrical side wall having a given diameter. In one embodiment, the proximate end has a diameter which is less than the given diameter and the distal portion has a diameter corresponding with the given diameter. The cap screw includes a distal end provided with a decorative configuration in a reversible embodiment of a cap screw according to the present invention.