sixteen components are listed in the schematic for this Gsxr750 1986 (g) (e01 E02 E04 E15 16 17 18 21 22 24 25 34 39 53) Handle Switch (model H E18) .
Some items from this specific schematic: Screw, Bolt,lever, Switch Assy,r, Contact,switch.
On this parts fiche the Screw, 5x45 is the most specified component.