Manufacturer Part Number: 4CSB|Thread Size (Inch)|1/4-20Thread Size (mm)|Material|High-Speed SteelCoating/Finish|Bright/UncoatedChamfer|PlugClass Of Fit|3BThread Limit|H2Number Of Flutes|2Thread Standard|STI UNCOverall Length (Decimal Inch)|Overall Length (mm)|Overall Length (Inch)|2-23/32Thread Pitch (Decimal Inch)|Thread Pitch (mm)|Material Grade|Thread Length (Decimal Inch)|Thread Length (Inch)|1-1/8Thread Length (mm)|Thread Depth (Decimal Inch)|Thread Depth (mm)|Shank Diameter (mm)|Shank Diameter (Decimal Inch)|0.3180Square Length (Inch)|3/8Square Length (mm)|Square Size (Decimal Inch)|0.2380Square Size (mm)|Application|Material Application|Series|Helicoil Reference Number|Threads per Inch|UNSPSC Code|