On this parts fiche the Bolt,socket,6x16 is the most specified component.
The Nut,flanged,8mm is the cheapest item from this partsfiche.
Parts such as the Front Fork: Holder-fork Under, Body-valve,relief, Gasket,fork Drain Plu (nas), Snap Ring,fork Outer are included in the Zx750e2 Gpz750 Turbo 1985 Usa California Canada Front Fork parts fiche.