ACCURATE MFD PRODUCTS - FLAT WASHER 1 9/16 IN ID X 3 I N OD - ACUZ9283

Perfect for use with Grade 8 capscrews and socket capscrews. Each washer is marked with the bolt size for easy identification. These washers are thicker than even the F436 series. Medium carbon steel thru hardened to Rockwell C43-49 mechanical zinc yello