If the Master Parts Listing does not specify Cadmium plating on a bolt or washer, can I assume it would be painted black? For example, are the 5/16 bolts that attach the rear fenders to the body supposed to be plated, or painted black, or?

The fastener could also be plain instead of painted.

Thanks Dog, sounds like some were plated and some plain, and some painted. If plain, were they coated with something to prevent rust?

Nope, not the bolts with the plain finish.