Check out any of the ten Generator components enlisted.
Parts such as the Generator: Bolt,flange,5x16, Gen Assy,pulse, Stator Comp, Nut,flange M16x1. are included in the Pes1509 2009 (9) European Direct Sales / Type 2 Generator parts fiche.
The Bolt.socket 6x80 is the lowest priced item on this Generator schematic.