Manufacturer Part Number: 5305-Z|Nut Type|Machine Screw Hex NutHex Nut Profile|Material|Stainless SteelThread Direction|Right HandThread Size (Inch)|5/16-18Thread Size (mm)|Material Grade|18-8Finish Coating|Bright/UncoatedWidth Across Flats (mm)|Width Across Flats (Inch)|1/2Width Across Flats (Decimal Inch)|Thread 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|Fractional InchAdditional Information|Product Service Code|UNSPSC Code|31161727