Parts such as the Frame: Bolt,socket,10x27, Collar Rr Fender, Bolt,socket,10x35, Bolt,flange,10x21 are included in the Vt1100c Shadow 1100 1986 (g) Usa California Frame parts fiche.
In this schematic the "Nut,flange,10mm" is used most often.
The Screw-wash,5x16 is the lowest priced item on this Frame schematic.