Manufacturer Part Number: 9039840063500|Thread Size (Inch)|1/4-20Thread Size (mm)|Thread Standard|UNCChamfer|Modified BottomingMaterial|CobaltCoating/Finish|TINThread Direction|Right HandCoolant Through|NoClass Of Fit|H11Thread Limit|H11Number Of Flutes|3Flute Direction|Right HandHelix Angle|40Threads per Inch|20Thread Depth (mm)|Overall Length (Inch)|2-1/2Thread Length (Decimal Inch)|Thread Length (mm)|Thread Length (Inch)|Overall Length (Decimal Inch)|2.5000Overall Length (mm)|Thread Depth (Decimal Inch)|Thread Pitch (Decimal Inch)|Thread Pitch (mm)|Thread Pitch (Inch)|Material Grade|Amount Oversize (Decimal Inch)|0.0050Oversize|YesApplication|Blind Hole ThreadingShank Diameter (Decimal Inch)|0.2550Shank Diameter (mm)|Neck Length (mm)|Neck Length (Inch)|Neck Length (Decimal Inch)|1.1810Tapping Depth (Decimal Inch)|Tapping Depth (mm)|Tapping Depth (Fractional Inch)|Square Length (mm)|Square Length (Inch)|Square Length (Decimal Inch)|Square Size (Decimal Inch)|0.1910Square Size (mm)|Flute Style|FastMaterial Application|Alloyed & Unalloyed SteelSeries|3984Helix Angle Range|Shank Length (mm)|Shank Length (Decimal Inch)|UNSPSC Code|Product Service Code|