The Pin-cotter,2.0x22 is the lowest priced item on this Frame schematic.
Parts such as the Frame: Washer,10.3x23x1.6, Shaft-comp-strg, Screw, Nut,14mm are included in the Kaf400-caf Mule610 2010 Usa / 4x4 Frame parts fiche.
Check out any of the twenty-three Frame components enlisted.