Overall lengthThread lengthThread+ lengtNeck hShank lengthShank dia.Size of squareLength of square
LℓnℓsDsKℓk
HC+PO/HC-POSpiralPointed Tapsfor High CarbonSteels
SizeClassCodeChamferL (mm)ℓ (mm)ℓn (mm)ℓs (mm)Ds (mm)K (mm)ℓk (mm)No. of flutesTypeStock
M12×1.25P4PCMS012N5P8226-428.56.5934
M14×2P4PCMS014Q5P8826-4510.581134
M14×1.5P3PCMR014O5P8826-4510.581134
M16×2P4PCMS016Q5P9526-4812.5101334
M16×1.5P3PCMR016O5P9526-4812.5101334
M18×2.5P4PCMS018R5P10033-5114111434
M18×1.5P4PCMS018O5P10033-5114111434
M20×2.5P4PCMS020R5P10533-5015121535
M20×1.5P4PCMS020O5P10533-5015121535
M22×2.5P4PCMS022R5P11533-5517131635
M24×3P4PCMS024S5P12039-5519151835