The most reasonably priced component used on the Cb750f2 750 Super Sport 1977 Usa Fuel Tank is the Nut,flange,6mm.
Parts such as the Fuel Tank: Mark,drive*typew*, O-ring, 23mm, Mark,driv*nh-0*, Cushion, Tank are included in the Cb750f2 750 Super Sport 1977 Usa Fuel Tank parts fiche.
In this schematic the "Nut,rear Ornament" is used most often.