Manufacturer Part Number: MP39602|Nut Type|Hex Nut Profile|Material|SteelThread Direction|Right HandThread Size (Inch)|5/16-18Thread Size (mm)|Material Grade|8Finish Coating|Yellow Zinc DichromateWidth Across Flats (mm)|Width Across Flats (Inch)|1/2Width Across Flats (Decimal Inch)|0.5000Thread Standard|UNCThread Fit Class|Hardness|Military Specification|Does Not Meet Military SpecificationsHeight (Inch)|17/64Height (mm)|Height (Decimal Inch)|Fastener Standard|Width Across Points (Decimal Inch)|Width Across Points (mm)|System Of Measurement|InchAdditional Information|Product Service Code|UNSPSC Code|31161727