Profile: Minneapolis Washer & Stamping, Inc. is a supplier of washers, spacers and stampings. We specialize in stamping flat round washers, fender washers, shims, spacers, belleville washers, bushings and single wave washers. Our flat washers provide a way to properly seat nuts, bolts, screws and rivets. We offer clipped stampings, disc stampings, expansion plug and hex ID stampings. We are an ISO 9001:2000 certified company.