Check out any of the twenty-eight Crankcase Cover 1 components enlisted.
Some items from this specific schematic: Gasket 256113960000 (nas), P1n, Dowel, Cover, Carburator 2, Screw, Pan Head(3tj).
Of all the components that make up this Crankcase Cover 1 the Screw, Pan Head(3tj) has the lowest price.