The Bolt-washer 6x28 is the lowest priced item on this Clutch schematic.
Parts such as the Clutch: Disk B,clutch Fri (nas), Bolt-washer 6x28, Plate,clutch Pres, Washer,spring,22m are included in the Cb600f Hornet 2010 (a) European Direct Sales / 25k Clutch parts fiche.
The Clutch assembly is constructed from several parts from which the Outer Comp,clutch is the most expensive.