In this schematic the "Bolt-upset 6x14" is used most often.
Check out any of the twelve Fenders ('81-'82 H1/h2) components enlisted.
Parts such as the Fenders ('81-'82 H1/h2): Bolt Upset,6x16, Washer-spring,6mm, Fender-front,cr Plate, Washer,6.5x20x1.6 are included in the Kz650h3 Csr 1983 Usa Canada Fenders ('81-'82 H1/h2) parts fiche.