Manufacturer Part Number: HHCSI21000400-0|Thread Size|1-8Thread Standard|UNCLength (Inch)|4Material|SteelMaterial|Material Grade|A307Finish|UncoatedThread Style|Partially ThreadedStandards|ASTM A307Hex Size (mm)|Hex Size (Inch)|Fastener Standard|ASTM A307Length Measurement Type|Length Under HeadFull or Partial Threading|Partially ThreadedFinish Coating|Bright/UncoatedSystem Of Measurement|InchLength (mm)|Product Service Code|UNSPSC Code|