The Washer, Plain is the most widely applied product in the EW50 2004 1S11 BELGIUM 1C1S1-300F1 STARTER ( two times ).
The lowest price component in this Starter parts-list fiche is the Bolt, Hexagon Socket.
Some items from this specific schematic: Bolt, Hexagon. Sock, Bolt, Hexagon Socke, O-ring (35r), Gasket, Yoke (nas).