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 Note1 Note1 TMa3ps Taps / 3/4-16UNF Taps / 7/8-14UNF Standard 23 SP SPRU12P SP P3 105 15 2.5P ① -42 Standard 23 SP SPRU14Q SP P3 115 17 2.5P ① -42 PO PORU12P PO 5P ③ -18 PO PORU14Q PO 5P ③ -18 TMa4ps 123 HT TNMRU12P5 HT P3 105 15 5P ④ -24 123 HT TNMSU14Q5 HT P4 115 17 5P ④ -24 TNMRU12P1 1.5P ④ -24 TNMSU14Q1 1.5P ④ -24 TMa5ps Oversize 123 HT TNMSU12P5 HT P4 105 15 5P ④ -24 Oxidizing 123 SP OX SPRU14QX SP P3 115 17 2.5P ① -64TNMSU12P11.5P④ -24PO OXPORU14QXPO5P③ -36 For left hand threads 123 HT LH TNMRU12P5-L HT P3 105 15 5P ④ -70 Long 23 LS-SP SPRU14QL20 SP P3 200 17 2.5P ① -90 TMa6ps Oxidizing 123 SP OX SPRU12PX SP P3 105 15 2.5P ① -64PO OXPORU12PXPO5P③ -36 LS-PO PORU14QL20 PO 5P ③ -54123LS-HTTNMRU14Q115HTP3150171.5P④ -80 Long 23 LS-SP SPRU12PL15 SP P3 150 15 2.5P ① -90 TNMRU14Q120 200 ④ -80 TMa8ps SPRU12PL20 200 ① -90 For stainless steels 2349 SU-SP SUMRU14Q SP P3 115 17 2.5P ①-101LS-POPORU12PL15PO1505P③ -54PORU12PL20200③ -54Taps / 7/8-20UNEF MT1a0ps 123 LS-HT TNMRU12P515 HT P3 150 15 5P ④ -80 Standard 23 SP SPQU14N SP P2 115 17 2.5P ① -42TNMRU12P520200④ -80123HTTNMRU14N5HTP3115175P④ -24 TNMRU12P115 150 1.5P ④ -80 TNMRU14N1 1.5P ④ -24 MT1a2ps TNMRU12P120 200 ④ -80For hard-to-machine materialsPowdered HSS356PM-POPYU12PSDPBPOP4105155.5P③ -93Taps / 1 -8UNC For stainless steels 2349 SU-SP SUMRU12P SP P3 105 15 2.5P ①-101 Standard 23 SP SPRU16X SP P3 125 19 2.5P ① -42 M1-MT8a.5ps 129 SU-HT TUMRU12P4 HT P3 105 15 4P ④ -90 PO POSU16X PO P4 5P ③ -18TUMRU12P11.5P④ -90123HTTNMSU16X5HTP4125195P④ -24 For cast Carbide ⑫⑬⑯ N-CT FC TCNSU12P3 HT P4 95 14 3P ⑤ -14 TNMSU16X1 1.5P ④ -24 M9-MT2a4ps irons TCNSU12P1 1.5P ⑤ -14 For left handFor helical coil wire⑱⑲㉑AL-HT STITWU12P1LEB5HTⅠb115175P⑦ -5threads123HT LH TNMSU16X5-L HT P4 125 19 5P ④ -70TNMSU16X1-L1.5P④ -70 screw thread inserts TWU12P1LEBA 1.5P ⑦ -5 Oxidizing 123 SP OX SPRU16XX SP P3 125 19 2.5P ① -64 M25-MT4a8ps Taps / 3/4-20UNEF PO OX POSU16XX PO P4 5P ③ -36Long23LS-SPSPRU16XL15SPP3150192.5P① -90 Standard 23 SP SPQU12N SP P2 105 15 2.5P ① -42 SPRU16XL20 200 ① -90 M50-MT1a0p0s PO PORU12N PO P3 5P ③ -18 LS-PO POSU16XL15 PO P4 150 5P ③ -54 123 HT TNMRU12N5 HT P3 105 15 5P ④ -24 POSU16XL20 200 ③ -54 For tUhrneiTfaiaedpdss TNMRU12N1Taps / 7/8-9UNC 1.5P ④ -24 123 LS-HT TNMRU16X515 HT P3 150 19 5P ④ -80TNMRU16X520200④ -80TNMRU16X525250④ -80 For WhtihtwrTeoaardtphss Standard 23 SP SPRU14W SP P3 115 17 2.5P ① -42POPOSU14WPOP45P③ -18 TNMRU16X115 150 1.5P ④ -80TNMRU16X120200④ -80 123 HT TNMSU14W5 HT P4 115 17 5P ④ -24 TNMRU16X125 250 ④ -80 For oSTncrseeawwitpnhgresm(aadcsShuinsMeeds ) For left handthreads TNMSU14W1 1.5P ④ -24 For hard-to-machine materialsPowdered HSS356 PM-PO PYU16XUDPB PO P6 125 19 5.5P ③ -93123HT LHTNMSU14W5-LHTP4115175P④ -70For stainless steels2349SU-SPSUMRU16XSPP3125192.5P①-101TNMSU14W1-L1.5P④ -70For heavy-industrial large parts12349HVSPSYU16XTEEXJSPP5160192.5P① -24 For Pipe thTreaadpss Oxidizing 123 SP OXPO OX SPRU14WX SP P3 115 17 2.5P ① -64POSU14WXPOP45P③ -36Taps / 1 -12UNF FpoirpeAmtherTreicaaadpnss Long 23 LS-SP SPRU14WL15 SP P3 150 17 2.5P ① -90 Standard 23 SP SPRU16S SP P3 125 19 2.5P ① -42SPRU14WL20200① -90POPOSU16SPOP45P③ -18LS-POPOSU14WL20POP45P③ -54123HTTNMSU16S5HTP4125195P④ -24 For MtinhiraTetauadrpess 123 LS-HT TNMRU14W520 HT P3 200 17 5P ④ -80TNMRU14W1201.5P④ -80For left handFor stainless steels2349SU-SPSUMRU14WSPP3115172.5P①-101threads TNMSU16S1 1.5P ④ -24123HT LHTNMSU16S5-LHTP4125195P④ -70TNMSU16S1-L1.5P④ -70 Sizes-110 Codes shown in ( ) are available while supplies last.