The sub assemblies and components that make up this Crankcase Cover include this Cover,clutch, the most expensive part.
Parts such as the Crankcase Cover: Screw, Screw (6x35), Screw 6x60, Screw(6x10) are included in the Ds250 1980 (t) Usa (e03) Crankcase Cover parts fiche.
On this parts fiche the Screw is the most specified component.