On this parts fiche the Nut,flange,7mm is the most specified component.
The Washer,plain,8mm is the lowest priced item on this Exhaust Muffler (cb600f2/f22) schematic.
This schematic depicts all components used in the Cb600f2 Hornet 2002 (2) European Direct Sales Bct Kph Exhaust Muffler (cb600f2/f22) partslist.