Overall lengthThread lengthThread+ lengtNeck h S lhank engthShank dia.Size of squareLength of square
H-HT Hand Tapsfor Hard-to-MachineMaterialsLℓnℓsDsKℓk
SizeClassCodeChamferL (mm)ℓ (mm)ℓn (mm)ℓs (mm)Ds (mm)K (mm)ℓk (mm)No. of flutesTypeStock
M16×2P5ETHMT016Q5 ETHMT016Q15P 2.5P9526-4812.5101342
M16×1.5P4ETHMS016O5 ETHMS016O15P 2.5P9526-4812.5101342
M18×2.5P5ETHMT018R5 ETHMT018R15P 2.5P10033-5114111442
M18×1.5P4ETHMS018O5 ETHMS018O15P 2.5P10033-5114111442
M20×2.5P5ETHMT020R5 ETHMT020R15P 2.5P10533-5015121543
M20×1.5P4ETHMS020O5 ETHMS020O15P 2.5P10533-5015121543
M22×2.5P5ETHMT022R5 ETHMT022R15P 2.5P11533-5517131643
M22×1.5P4ETHMS022O5 ETHMS022O15P 2.5P11533-5517131643
M24×3P5ETHMT024S5 ETHMT024S15P 2.5P12039-5519151843
M24×1.5P4ETHMS024O5 ETHMS024O15P 2.5P12039-5519151843
M27×3P5ETHMT027S5 ETHMT027S15P 2.5P13039-6020151843
M30×3.5P5ETHMT030T5 ETHMT030T15P 2.5P13546-6223172043