Some items from this specific schematic: Nut,cable Adjuster, Clamp(l:120), Grip,throttle, Block,lighting/dimmer.
This RIGHT HANDLE SWITCH (DS100C assembly utilises two Screw 5x20(s) - the highest specified component.
This schematic depicts all components used in the Ds100 1981 (x) Usa (e03) Right Handle Switch (ds100c partslist.