Parts such as the Cylinder Head Cover: Bolt,flange,7x30, Washer B,tach., Bolt,flange,6x45, Bolt,flange,6x20 are included in the Cb250rsz 1982 (c) Germany / Type 2 12.5kw Cylinder Head Cover parts fiche.
With four applications this Bolt,flange,6x20 is the most specified part.
Of all the components that make up this Cylinder Head Cover the Washer Seal, 6mm has the lowest price.