Abstract: A piston pin comprising a tubular body enclosed by end caps, the end caps being secured to the tubular body by an extrusion extending into a recess in the inner periphery of the tubular body, and said extrusion being formed when said end cap is hammered into the tubular body so that an end of the end cap abuts against an annular wall in the tubular body adjacent the recess to force the end cap material into the recess. Preferably, the end cap includes an axial bore, and a transverse bore for communicating between the axial bore and the periphery of the cap, and the transverse bore is positioned so that it communicates with an area adjacent a tapered end portion of the tubular body. In a preferred method of forming piston pins according to the present invention, the tubular body is heated before the plug is hammered into position within the end of the tubular body. Once the end cap has been installed in the tubular body, the end cap and the axial end of the tubular body can be finish machined as desired.