The most reasonably priced component used on the Cb600f Hornet 2005 (5) European Direct Sales 25k Rear Cushion (cb600f3/4/5/6) is the Nut,u,flange,10mm.
Some items from this specific schematic: Nut,u,flange,10mm, Cushion Assy,rear, Label,rr Damper, Bolt,flange 10x55.
This REAR CUSHION (CB600F3/4/5/6) assembly utilises two Bolt,flange 10x55(s) - the highest specified component.