Back Home / Fasteners / Washers / FLAT WASHER SAE ZINC 3/8″ FLAT WASHER SAE ZINC 3/8″ SKU: SFW38 Categories: Fasteners, Washers Used to improve stress distribution, and to span large holes. SAE PATTERN. Made from low carbon steel, zinc plated. Outside Diameter: 13/16″ Inside Diameter: 13/32″ Case Quantity: 100 Log In For Pricing