Manufacturer Part Number: 40531|Drive Type|HexPoint Type|Knurled CupThread Size (mm)|Thread Size (Inch)|5/16-18Length (Inch)|3/8Length (mm)|Material|Alloy SteelThread Standard|UNCMaterial Grade|Grade 8Tip Material|Drive Size (TXT)|5/32 inLength Measurement Type|Overall LengthFastener Standard|ASME/ANSI B18.3; ASTM F912Hex Key Size (Inch)|5/32Hex Key Size (Decimal Inch)|0.1563Hex Key Size (mm)|System Of Measurement|InchFinish Coating|Product Service Code|UNSPSC Code|