Back Home / Fasteners / Nuts / HEX FLANGE NUT ZINC 3/8″-16 HEX FLANGE NUT ZINC 3/8″-16 SKU: XFN3816 Categories: Fasteners, Nuts A flange nut has a wide flange at one end that acts as an integrated washer. The flange serves to distribute the pressure of the nut over the part being secured. Less likely to loosen as a result of an uneven fastening surface. Serrated. Grade A case hardened. Size: 3/8″-16. Case Quantity: 100 Log In For Pricing