Manufacturer Part Number: KTTB208JN|Accessory Type|Jaw NutProduct Compatibility|Lathe ChucksMaterial|SteelChuck Diameter Compatibility (mm)|203.20Chuck Diameter Compatibility (Decimal Inch)|8.0000Thread Size|M12Screw Size (mm)|12.00Screw Size (Inch)|Screw Size (Decimal Inch)|0.4724Mount Type|Outside Diameter (mm)|Outside Diameter (Decimal Inch - 4 Decimals)|Outside Diameter (Inch)|Serration Dimensions|1.5 mm x 60 degreesDistance Between Mount Hole Centers (Decimal Inch)|0.9840Distance Between Mount Hole Centers (mm)|Groove Width (Decimal Inch)|0.5510Product Length (Decimal Inch)|1.8300Product Length (Inch)|Product Width (Inch)|Product Height (mm)|20.57Req'd # of Studs for Chuck|Product Height (Inch)|0.8100Product Width/Diameter (Decimal Inch)|0.8100Number Of Pieces|Distance Between Mount Holes (Fractional Inch)|UNSPSC Code|