Manufacturer Part Number: 815979PR|System Of Measurement|MetricThread Size (Inch)|Thread Size (mm)|M20x2.5Length Under Head (Inch)|Length Under Head (mm)|75.00Material|SteelMaterial Grade|8.8Finish Coating|ZincThread Standard|MetricFull or Partial Threading|Partially ThreadedLength (mm)|75.00Length (Inch)|Head Height (Inch)|Head Height (mm)|Head Height (Decimal Inch)|Standards|DIN 931; ISO 4014Length Measurement Type|Length Under HeadHex Key Size (Decimal Inch)|Hex Key Size (mm)|30.00Hex Key Size (Inch)|Additional Information|Product Service Code|5306UNSPSC Code|