Check the listing for details. Cleveland Straight Flute Hand Tap, Taper, 4. Condition: New. Listed at 12.00 USD. DimensionsShank Dia.Shank Dia.: 0.318"Tap Thread Size5/16"-24Tap Size5/16"Tap Dimension TypeInchOverall Length2-23/32"Thread Length1-1/8"Pitch Diameter LimitH355% Thread Drill Size9/32 in65% Thread Drill SizeJTap Length StandardUSCTIThread Size5/16"-2475% Thread Drill SizeISquare Size0.2380 inShank Length1 19/32 inDetailsItemStraight Flute Hand TapTap ChamferTaperTap MaterialHigh Speed SteelNumber of Flutes4Tap Thread TypeUNFTap StyleStraight Flute (Hand)List Number1001StandardsUSCTI Table 302ANumber of Pieces1Thread DirectionRight HandTap FinishBrightCutting Direction - MachiningRight HandSeries1001Thread StandardUNFSpiral DirectionNeutralSecondary Material ApplicationAluminum, Brass, Bronze, Cast Iron, Copper, SteelSecondary Material Application ISO CodeK, M, N, PThread LimitH3Extended NeckYesClass of Fit2BPrimary Material ApplicationAll MaterialsThreads per Inch24Shank Type - MachiningStraightPrimary Material Application ISO CodeH, K, M, N, O, P, SMeasurement SystemFractional InchTap Shank StandardUSCTIHelix Angle0 DegreesThread Limit / Class of FitH3 / 2BDescriptionStraight Flute Tap, Thread Size 5/16 In.-24, UNF, Taper, Overall Length 2 23/32 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 11/16 in, 75 Percent Thread Drill Size I, Thread Limit H3, Class of Fit 2B