Manufacturer Part Number: 9039440063500|Thread Size (Inch)|1/4-28Thread Size (mm)|Thread Standard|UNFChamfer|Modified BottomingChamfered Threads|2-3PMaterial|High-Speed Steel-E-COCoating/Finish|TiCNCoolant Through|NoClass Of Fit|2BXThread Limit|H6; H7Overall Length (Inch)|2-1/2Overall Length (Decimal Inch)|2.5000Overall Length (mm)|Thread Direction|Right HandThread Length (Inch)|Thread Length (Decimal Inch)|0.6299Thread Length (mm)|16.00Shank Diameter (Inch)|Shank Diameter (Decimal Inch)|0.2550Shank Diameter (mm)|Square Length (Inch)|Square Length (Decimal Inch)|Square Length (mm)|Material Application|Steel; Stainless Steel; Cast Iron; Non-Ferrous MetalApplication|Blind Hole Threading; Through-Hole ThreadingSeries|3944Tapping Depth (Decimal Inch)|1.1811Tapping Depth (mm)|30.00Square Size (Decimal Inch)|0.1910Square Size (mm)|Threads per Inch|Flute By Diameter Ratio|3xDMaterial Grade|Oil Grooves|5Material Application Code|P; M; K; NTrade Name|Number Of Flutes|Product Service Code|UNSPSC Code|