Heavy Duty Steel Washe, BZP, 5/16 For use with UNC, UNF, BSW and BSF fasteners. MPN: CTL6451632C EAN: 5014196265032 Heavy Duty Steel Washe, BZP, 5/16 Attributes: Diameter: 5/16in Material: Steel Surface Treatment: Zinc Plated Thickness: 0.6…View more