Flute Class Flute Class Icons of main materials 1 Low carbon steel   2 Medium carbon steel   3 High carbon steel   4 Alloy steel   5 Thermal refined stee(l 25~35HRC)   6 Thermal refined stee(l 35~45HRC)    7 Thermal refined stee(l 45~55HRC)   8 Thermal refined stee(l 50~63HRC)   9 Stainless steel    Tool steel   ⓫ Cast steel   ⓬ Cast iron    ⓭ Ductile cast iron   ⓮ Copper   ⓯ Brass   ⓰ Brass casting   ⓱ Bronze   ⓲ Wrought aluminum   ⓳ Aluminum alloy casting    ⓴ Magnesium alloy    Zinc alloy   ㉒ Titanium alloy   ㉓ Nickel base alloy   ㉔ Thermosetting plastic   ㉕ Thermoplastic resin  TMa2ps Tap selection MainmaterialSymbol Code L Ds ℓc Productpage Tap selection MainmaterialSymbol Code L Ds ℓc Productpage Note 1 Note 1 TMa3ps Taps / 2-11RcStandard(ISOstandard)Standard234 Rc Taps / 4-11TH2RC32UHTⅡ140462.5P⑧ -13PTStandardFor PT threads234PT TH2T64U HT Ⅱ 170 75 2.5P ⑧ -14 PT Standard For PT 234 PT TH2T32U HT Ⅱ 120 46 2.5P ⑧ -14 PS Standard 123 PS TH2P64U HT Ⅱ 170 75 3.5P ⑧ -42 TMa4ps threads 123 SP-PT SH2T32U SP Ⅱ 120 46 2.5P ⑧ -21 PF Standard 123 PF TH2F64U HT Ⅱ 170 75 3.5P ⑧ -71 For PT threads 234 S-PT TSPT32U HT Ⅱ 120 46 2.5P ⑧ -17 TMa5ps short (lg) type 123 SP-S-PT SSPT32U SP Ⅱ 120 46 2.5P ⑧ -22For left handFor PT threads234PT LHTH2T32U--LHTⅡ120462.5P⑧ -15 threads For PT threadsshort (lg) type234S-PT LH TSPT32U--L HT Ⅱ 120 46 2.5P ⑧ -18 TMa6ps Long shank For PT threads 234 LS-PT L20T32U HT Ⅱ 200 46 2.5P ⑧ -19InterruptedFor PT threads19⑪INT-PTTINT32USLⅡ120463P⑧ -26 For PT threadsshort (lg) type19⑪INT-S-PT TIST32U SL Ⅱ 120 46 3P ⑧ -27 TMa8ps For lowcarbon steelsFor PT threads1⑪ LC-PT LCPT32U HT Ⅱ 120 46 2.5P ⑧ -30For stainlessFor PT threads12349SU-SP-PTSYPT322GEXSPⅡ120462P⑧ -34 steels For PT threadsshort (lg) type12349SU-SP-S-PT SYPT322GEXS SP Ⅱ 120 46 2P ⑧ -35 MT1a0ps For cast For PT threads ⑫⑬ FC-PT FCPT32U HT Ⅱ 120 46 2.5P ⑧ -36ironsFor PT threadsshort (lg) type⑫⑬FC-S-PTFCSPT32UHTⅡ120462.5P⑧ -37 Rp Standard(ISO standard) 123 Rp TH2RP32U HT Ⅱ 140 46 3.5P ⑧ -40 MT1a2ps PS Standard 123 PS TH2P32U HT Ⅱ 120 46 3.5P ⑧ -41SP-PSSH2P32USP2.5P⑧ -45 For left hand threads 123 PS LH TH2P32U--L HT Ⅱ 120 46 3.5P ⑧ -43 M1-MT8a.5ps G Standard(ISO standard) 123 GPFStandard123PF TH2G32U HT Ⅱ 140 46 3.5P ⑧ -49TH2F32UHTⅡ120463.5P⑧ -70 TH2F32U1 1.5P ⑧ -70 M9-MT2a4ps SP-PF SH2F32U SP 2.5P ⑧ -74 For left hand threads 123 PF LH TH2F32U--L HT Ⅱ 120 46 3.5P ⑧ -72 Long shank 123 LS-PF L20F32U HT Ⅱ 200 46 3.5P ⑧ -73 M25-MT4a8ps For cast irons ⑫⑬ FC-PF FCPF32U HT Ⅱ 120 46 3.5P ⑧ -78 Taps / 2 1/4-11 M50-MT1a0p0s PT Standard For PT threads 234 PT TH2T36U HT Ⅱ 145 50 2.5P ⑧ -14 PS Standard 123 PS TH2P36U HT Ⅱ 145 50 3.5P ⑧ -41 For tUhrneiTfaiaedpdss Taps / 2 1/2-11 PT Standard For PT threads 234 PT TH2T40U HT Ⅱ 145 55 2.5P ⑧ -14 For WhtihtwrTeoaardtphss For PT threadsshort (lg) type234S-PTPSStandard123PS TSPT40U HT Ⅱ 145 55 2.5P ⑧ -17TH2P40UHTⅡ145553.5P⑧ -41 PF Standard 123 PF TH2F40U HT Ⅱ 145 55 3.5P ⑧ -70 For oSTncrseeawwitpnhgresm(aadcsShuinsMeeds ) Taps / 3-11 PT Standard For PT threads 234 PT TH2T48U HT Ⅱ 155 65 2.5P ⑧ -14 For Pipe thTreaadpss For PT threadsshort (lg) type234S-PTPSStandard123PS TSPT48U HT Ⅱ 155 65 2.5P ⑧ -17TH2P48UHTⅡ155653.5P⑧ -42 FpoirpeAmtherrTeicaaadpnss PF Standard 123 PF TH2F48U HT Ⅱ 155 65 3.5P ⑧ -71TH2F48U11.5P⑧ -71 Taps / 3 1/2-11 For MtinhiraTetauadrpess PT Standard For PT threads 234 PTPSStandard123PS TH2T56U HT Ⅱ 165 70 2.5P ⑧ -14TH2P56UHTⅡ165703.5P⑧ -42 PF Standard 123 PF TH2F56U HT Ⅱ 165 70 3.5P ⑧ -71 Sizes-128 Codes shown in ( ) are available while supplies last.