(57) A pinned component for use in textile finishing machines and other purposes, the component having a plurality of pins projecting from the surface of its body and wherein the surface of the body is given a textured finish by means of a sandblasting or chemical etching process. The sandblasting or etching removes unwanted burrs or the like from the surface of the body and if the pins are secured in their apertures with adhesive will also remove excess adhesive, thereby allowing the component to operate more efficiently. A typical component which would incorporate the invention would be an opening roller for an open-end spinning machine.