... function:fastening and buffering 1.product profile Phillips pan head combined screw fasteners are consisted of a screw , ... pressure, and protect the machine .Item NamePhillips pan head combined screw fastenersMaterialStainless steel,carbon steel,or as your ... screws,rivet, bolt, nut.ect. Nearly all kinds df styles are available. head styles: pan head, binding head, truss head,round head, hexagon head ...