The most reasonably priced component used on the Cb550 Four Cb550k3 1977 Usa Rear Fender is the Nut,flange,6mm.
In this schematic the "Grommet,wire Cord" is used most often.
This part-list fiche shows all the components that make up the Cb550 Four Cb550k3 1977 Usa Rear Fender .