Manufacturer Part Number: 1812500|Thread Size (mm)|Thread Size (Inch)|5/16-18Thread Standard|UNCThread Limit|H3Thread Pitch|Thread Length (Inch)|1-1/8Thread Length (Decimal Inch)|Thread Length (mm)|Overall Length (Decimal Inch)|Overall Length (Inch)|2-23/32Overall Length (mm)|Chamfer|BottomingMaterial|High Speed SteelShank Diameter (Inch - 0 Decimals)|0.3180Shank Diameter|0.3180inShank Diameter (mm)|Shank Diameter (Decimal Inch)|0.3180Square Length (mm)|Square Length (Inch)|Square Size (mm)|Square Size (Decimal Inch)|0.2380Material Application|Aluminum; Carbon Steel; Cast Iron; Hardened SteelSeries|126Helicoil Reference Number|Number Of Flutes|4Class Of Fit|Coating/Finish|BrightProduct Service Code|UNSPSC Code|