This AIR CLEANER/MUFFLER (KM100-A6/A7 assembly utilises two Screw-pan-cros,5x10(s) - the highest specified component.
Parts such as the Air Cleaner/muffler (km100-a6/a7: Washer-spring,8mm, Screw-pan Head,6x14, Baffle-pipe Muffler, Washer,6.2x11x1.5 are included in the Km100-a4 1979 Usa Canada / Mph Kph Air Cleaner/muffler (km100-a6/a7 parts fiche.
The Washer-spring,6mm is the cheapest item from this partsfiche.