In this schematic the "Washer, Plain" is used most often.
Parts such as the Starter: Bolt, Hexagon Socket, Shaft, Spring, Torsion (32n), Starter Clutch Assy are included in the Ew50 2004 1s11 Poland 1c1s1-300g1 Starter parts fiche.
The lowest price component in this Starter parts-list fiche is the Bolt, Hexagon Socket.