In this schematic the "Bolt-washer,6x12" is used most often.
Parts such as the Rear Fender - Rear Carrier: Carrier,sub, Bolt-washer,6x12, Screw Wash 6x10, Label,helmet Hold are included in the Cf50c Chally General Export Rear Fender - Rear Carrier parts fiche.
The lowest price component in this Rear Fender - Rear Carrier parts-list fiche is the Screw Wash 6x10.