
Symbol of flute design Spiral Straight Spiral point Left hand spiral Roll Symbol of size Symbol of flute design SP HT PO SL RO Overall length Shank dia. Chamfer length Note 1: Product symbols shown in red mean the Drill hole shape tap suitable for synchronized feed tapping. L Ds ℓc P: B: M2 Main Product L Ds ℓc Class Flute Tap selection Symbol Code Ta ps material page Note 1 Taps / 1-11 1/2 M3 Ta ps NPT Standard For NPT 234 NPT TNPT16T HT ANSI G 95 26 3P ⑧-80 threads 123 SP-NPT SNPT16T SP ANSI G 95 26 2.5P ⑧-86 M4 For NPT threads Ta short (lg) type 234 S-NPT TSNPT16T HT ANSI G 95 26 3P ⑧-84 ps Long shank For NPT threads 234 LS-NPT TNPT16TL15 HT ANSI G 150 26 3P ⑧-85 Interrupted For NPT threads 19⑪ INT-NPT TINPT16T SL ANSI G 95 26 3P ⑧-89 M5 For NPT threads Ta short (lg) type 19⑪ INT-S-NPT TISNT16T SL ANSI G 95 26 3P ⑧-91 ps NPTF Standard 234 NPTF TNTF16T HT ANSI G 95 26 3P ⑧-92 Long shank 234 LS-NPTF TNTF16TL15 HT ANSI G 150 26 3P ⑧-96 M6 Ta NPS Standard 123 NPS TNPS16T HT ANSI G 95 26 5P ⑧-97 ps NPSF Standard 123 NPSF TNSF16T HT ANSI G 95 26 5P ⑧-99 M8 Taps / 1 1/4-11 1/2 Ta ps NPT Standard For NPT threads 234 NPT TNPT20T HT ANSI G 105 32 3P ⑧-80 For NPT threads short (lg) type 234 S-NPT TSNPT20T HT ANSI G 105 32 3P ⑧-84 M1 0 Ta ps Interrupted For NPT threads 19⑪ INT-NPT TINPT20T SL ANSI G 105 32 3P ⑧-89 For NPT threads short (lg) type 19⑪ INT-S-NPT TISNT20T SL ANSI G 105 32 3P ⑧-91 NPTF Standard 234 NPTF TNTF20T HT ANSI G 105 32 3P ⑧-92 M1 Ta 2 ps NPS Standard 123 NPS TNPS20T HT ANSI G 105 32 5P ⑧-97 NPSF Standard 123 NPSF TNSF20T HT ANSI G 105 32 5P ⑧-99 M1 -M Taps / 1 1/2-11 1/2 Ta 8.5 ps NPT Standard For NPT threads 234 NPT TNPT24T HT ANSI G 110 38 3P ⑧-80 For NPT threads M9 short (lg) type 234 S-NPT TSNPT24T HT ANSI G 110 38 3P ⑧-84 Ta -M ps 24 Interrupted For NPT threads 19⑪ INT-NPT TINPT24T SL ANSI G 110 38 3P ⑧-89 For NPT threads short (lg) type 19⑪ INT-S-NPT TISNT24T SL ANSI G 110 38 3P ⑧-91 M2 NPTF Standard 234 NPTF TNTF24T HT ANSI G 110 38 3P ⑧-92 Ta 5-M ps 48 NPS Standard 123 NPS TNPS24T HT ANSI G 110 38 5P ⑧-97 NPSF Standard 123 NPSF TNSF24T HT ANSI G 110 38 5P ⑧-99 M5 Ta 0-M1 Taps / 2-11 1/2 ps 00 Fo NPT Standard For NPT threads 234 NPT TNPT32T HT ANSI G 120 46 3P ⑧-80 rU thr nifie e For NPT threads Ta ads d short (lg) type 234 S-NPT TSNPT32T HT ANSI G 120 46 3P ⑧-84 ps Interrupted For NPT threads 19⑪ INT-NPT TINPT32T SL ANSI G 120 46 3P ⑧-89 For NPT threads For W short (lg) type 19⑪ INT-S-NPT TISNT32T SL ANSI G 120 46 3P ⑧-91 thr hitwo e r Ta ads th NPTF Standard 234 NPTF TNTF32T HT ANSI G 120 46 3P ⑧-92 ps NPS Standard 123 NPS TNPS32T HT ANSI G 120 46 5P ⑧-97 For S crew NPSF Standard 123 NPSF TNSF32T HT ANSI G 120 46 5P ⑧-99 on se threads w us Ta ing machi ed ps( nes Taps / 2 1/2-8 M)S NPT Standard For NPT threads 234 NPT TNPT40X HT ANSI G 145 55 3P ⑧-80 For P Ta ipe th ps read s Taps / 3-8 For A pip meric NPT Standard For NPT threads 234 NPT TNPT48X HT ANSI G 155 65 3P ⑧-80 e a Ta thre n ps ads For M thr iniatu e Ta ads re ps For improvement, spec may change without advance notice. Sizes-131