With all the components that make up the XS650 1980 (A) USA HEADLIGHT assembly. The Screw, Pan Head (713) is the most frequently specified with three applications.
Some items from this specific schematic: Nut(661), Collar (584), Ring, Retaining, Screw, Oval Head (1a0).
Of all the components used in this assembly the Head Lamp Unit Assy is the most expensive.