Back Home / Fasteners / Washers / FLAT WASHER SAE ZINC 1″ THRU HARDENED FLAT WASHER SAE ZINC 1″ THRU HARDENED SKU: 8SFW1 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: 2″ Inside Diameter: 1-1/16″ Case Quantity: 25 Log In For Pricing