Features This machine screw hex nut is designed for use in general-purpose applications. Nut Style / Machine Screw Nut System of Measurement / Inch Basic Material / Steel Fastener Finish / Zinc Plated Fastener Thread Direction / Right Hand Dia./Thread Size / #12-24 Fastener Thread Type / UNC (Coarse) Width Across Flats / 7/16 in Nut Height / 5/32 in Nut Standards / ASME B18.6.3