Manufacturer Part Number: 1657004008|Thread Size (mm)|Thread Size (Inch)|1/4-18Overall Length (Decimal Inch)|3.937Overall Length (mm)|Overall Length (Inch)|Chamfer|Thread Standard|NPTFlute Direction|Right HandHelix Angle|40Material|High-Speed SteelThread Length (Decimal Inch)|1.0630Thread Length (Inch)|Thread Length (mm)|Thread Depth (mm)|Thread Pitch (mm)|Thread Pitch (Decimal Inch)|Thread Depth (Decimal Inch)|Shank Diameter (mm)|Shank Diameter (Decimal Inch)|0.5630Square Length (Inch)|0.4375Square Length (Decimal Inch)|Square Length (mm)|Square Size (mm)|Square Size (Decimal Inch)|0.4210Projection (Decimal Inch)|0.4590Application|TappingMaterial Application|Carbon Steel; Alloy Steel; Stainless Steel; Cast Iron; Cast Aluminum; Titanium; Hardened SteelSeries|16570Material Grade|Threads per Inch|18Coating/Finish|VCoolant Through|NoNumber Of Flutes|3UNSPSC Code|