Manufacturer Part Number: 451053PR|System Of Measurement|InchThread Size (Inch)|1/4-20Thread Size (mm)|Length Under Head (Inch)|8Length Under Head (mm)|Material|SteelMaterial Grade|8Finish Coating|Bright/UncoatedThread Standard|UNCFull or Partial Threading|Partially ThreadedLength (mm)|Length (Inch)|8Head Height (Inch)|Head Height (mm)|Head Height (Decimal Inch)|Standards|ASME B18.2.1Length Measurement Type|Length Under HeadHex Key Size (Decimal Inch)|Hex Key Size (mm)|Hex Key Size (Inch)|Additional Information|Product Service Code|UNSPSC Code|31161501