Of all the components used in this assembly the Lamp Assembly,rear Turn Signal is the most expensive.
Parts such as the Turn Signal Lamp: Screw,turn Sig Lens Fitting, Nut, Cushion, Spacer are included in the Gsxr750 1986 (g) Usa (e03) Turn Signal Lamp parts fiche.
The Screw is the cheapest item from this partsfiche.