US Patent 7891903 Release pin

A quick release pin has an elongated body having an axial bore therethrough, a shaft extending at least partially through the axial bore for axial movement along the bore; a spindle separately mounted on a first end of the shaft; a button separately mounted on a second opposite end of the shaft; and a handle having a central passage through which the button extends, wherein the handle is mounted to the elongated body. The shaft can be interchanged with a variety of materials and lengths of shafts.