In this schematic the "Screw,tapping,4x8" is used most often.
The lowest price component in this Air Cleaner parts-list fiche is the Screw,tapping,4x8.
Parts such as the Air Cleaner: Screw,tapping,4x8, Grommet, Tube, Tube, 12x300, Joint,breather are included in the Cx500c Custom 1981 (b) Italy Air Cleaner parts fiche.