A sample from the products for the Generator include: Flywheel Comp, Bolt Flang 6x12, Bolt,flange,10x35, Washer,10.5x27.
In this schematic the "Bolt Socket 6x28" is used most often.
The most reasonably priced component used on the Cb1000r 2010 (a) European Direct Sales Generator is the Bolt Flang 6x12.