Manufacturer Part Number: 40703|Style|Equal Double ThreadedThread Size (Inch)|1/2-13Thread Size (mm)|Overall Length (Decimal Inch)|2.5000Overall Length (Inch)|2-1/2Overall Length (mm)|63.50Material|Medium-Carbon SteelFinish|Black OxideLong Thread Length (Fractional Inch)|Long Thread Length (Decimal Inch)|Long Thread Length (mm)|Equal-Style Thread Length (Inch)|Short Thread Length (Decimal Inch)|Short Thread Length (mm)|Equal-Style Thread Length (mm)|Short Thread Length (Inch)|Thread Length (Inch)|1Thread Length (Decimal Inch)|1.0000Thread Fit Class|Thread Direction|Flat|NoMaterial Grade|5Standards|Includes|Additional Information|Driver StudsUnthreaded Shank Length (mm)|12.70Short-End Thread Size|Unthreaded Shank Length (Inch)|1/2Long-End Thread Size|System Of Measurement|Fractional InchProduct Service Code|UNSPSC Code|31161618