In this schematic the "Collar(51l)" is used most often.
Parts such as the Front Fender - Rear Fender: Bracket, Fender, Bolt(1lv), Washer(6a1), Collar(51l) are included in the Ct2 1972 Usa Front Fender - Rear Fender parts fiche.
The Bolt(2jg) is the lowest priced item on this Front Fender - Rear Fender schematic.