Of all the components used in this assembly the Fender,front is the most expensive.
Parts such as the Fenders (s1-a/b/c): Washer-spring,6mm, Washer-plain,6mm, Bolt,hex Head,6x36, Washer-spring,8mm are included in the S1b Mach I 1974 Usa Canada Fenders (s1-a/b/c) parts fiche.
On this parts fiche the Screw-pan Head,6x14 is the most specified component.