Manufacturer Part Number: 521|Thread Size (Inch)|Thread Size (mm)|Head Type|Drive Type|Material|Length (Inch)|Material Grade|Drive Size (mm)|Drive Size|Head Diameter (Decimal Inch)|Head Diameter (Inch)|Head Diameter (mm)|Head Height (Inch)|Head Height (mm)|Drive Size|Head Height (Decimal Inch)|Thread Style|Washer Style|Length Measurement Type|Fastener Standard|Phillips Drive Size|Torx Drive Size|Length Under Head (mm)|Length (mm)|Full or Partial Threading|Finish Coating|System Of Measurement|Length Under Head (Inch)|Thread Standard|Additional Information|Product Service Code|UNSPSC Code|31161504