On this parts fiche the Screw is the most specified component.
Some items from this specific schematic: Cover,stay, Gasket (nas), Washer (10.5x30x2.3), Cover,stay.
The most reasonably priced component used on the Gs450l 1980 (t) (e02 E21 E22 E24 E25) Turn Signal Lamp (e15, E21) is the Screw.
