On this parts fiche the Bolt,flange,6x32 is the most specified component.
The Washer,10mm is the lowest priced item on this Clutch Cover (cb1100rb-rc) schematic.
A sample from the products for the Clutch Cover (cb1100rb-rc) include: Cap,clutch Adjg., Lev,clch Adjg, Bolt,flange,6x40, Bolt,clch Adjg.