Back Home / Fasteners / Washers / FLAT WASHER SAE ZINC 9/16″ THRU HARDENED FLAT WASHER SAE ZINC 9/16″ THRU HARDENED SKU: 8SFW96 Categories: Fasteners, Washers Used to improve stress distribution, and to span large holes. Yellow zinc plated. Made from heat treated thru-hardened steel. SAE PATTERN Outside Diameter: 1-3/16″ Inside Diameter: 19/32″ Case Quantity: 50 Log In For Pricing