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 High performance 1234 HP-RZ HRZM7U04KP RO G7 62 6 4P ⑥ -50 For left hand 23 SP LH SPQU05M--L SP P2 70 6.2 2.5P ① -78 TMa3ps thread forming taps 59⑲ HRZM7U04KB 2P ⑥ -50 threads PO LH POQU05M--L PO 5P ③ -47 For helical coil wire ⑱⑲㉑ AL-HT STI TWU04K1LEB5 HT Ⅰb 70 6.2 5P ⑦ -5 123 HT LH TNMQU05M5-L HT P2 70 6.2 5P ④ -69 screw thread inserts TWU04K1LEBA 1.5P ⑦ -5 TNMQU05M1-L 1.5P ④ -69 TMa4ps Taps / 1/4-32UNEF Oxidizing 123 SP OX SPQU05MX SP P2 70 6.2 2.5P ① -64PO OXPOQU05MXPO5P③ -36 TMa5ps Standard 23 SP SPQU04J SP P2 62 6 2.5P ① -42 LongPOPOQU04JPO5P③ -17 23 LS-SP SPQU05ML10 SP P2 100 6.2 2.5P ① -90SPQU05ML15150① -90 123 HT TNMQU04J5 HT P2 62 6 5P ④ -22 LS-PO POQU05ML10 PO 100 5P ③ -54 TMa6ps TNMQU04J1Taps / 5/16-18UNC 1.5P ④ -22 POQU05ML15 150 ③ -54123LS-HTTNMQU05M515HTP21506.25P④ -79TNMQU05M520200④ -79 TMa8ps Standard 23 SP SPQU05O SP P2 70 6.2 2.5P ① -42POPORU05OPOP35P③ -17 TNMQU05M115 150 1.5P ④ -79TNMQU05M120200④ -79 123 HT TNMRU05O5 HT P3 70 6.2 5P ④ -22 For hard-to-machine materialsPowdered HSS356PM-PO PYU05MRDPB PO P3 70 6.2 5.5P ③ -93 MT1a0ps TNMRU05O1 1.5P ④ -22 For stainless steels 2349 SU-SP SUMQU05M SP P2 70 6.2 2.5P ①-100Oversize123HTTNMSU05O5HTP4706.25P④ -2212349SU-POPUMQU05MPOP2706.25P③ -62 TNMSU05O1 1.5P ④ -22 129 SU-HT TUMQU05M4 HT P2 70 6.2 4P ④ -89 MT1a2ps For left handthreads 23 SP LH SPQU05O--L SP P2 70 6.2 2.5P ① -78 TUMQU05M1 1.5P ④ -90PO LHPORU05O--LPOP35P③ -47For castCarbide⑫⑬⑯N-CT FCTCNRU05M3HTP3706.13P⑤ -13 Oxidizing 123 SP OX SPQU05OX SP P2 70 6.2 2.5P ① -64 irons TCNRU05M1 1.5P ⑤ -13 M1-MT8a.5ps Long PO OX PORU05OX PO P3 5P ③ -36 For helical coil wire ⑱⑲㉑ AL-HT STI TWU05M1LEB5 HT Ⅰb 75 7 5P ⑦ -523LS-SPSPQU05OL10SPP21006.22.5P① -90screw thread insertsTWU05M1LEBA1.5P⑦ -5 M9-MT2a4ps LS-PO SPQU05OL15 150 ① -90PORU05OL10POP31005P③ -54Taps / 5/16-32UNEF PORU05OL15 150 ③ -54 Standard 23 SP SPQU05J SP P2 70 6.2 2.5P ① -42 123 LS-HT TNMQU05O515 HT P2 150 6.2 5P ④ -79 PO POQU05J PO 5P ③ -17 M25-MT4a8ps TNMQU05O520 200 ④ -79 123 HT TNMQU05J5 HT P2 70 6.2 5P ④ -23 TNMQU05O115 150 1.5P ④ -79 TNMQU05J1 1.5P ④ -23 M50-MT1a0p0s Thread forming taps 12 N-RZ TNMQU05O120 200 ④ -79NRZM7U05OPROG7706.24P⑥ -17Taps / 3/8-16UNCfor steelsNRZM7U05OB2P⑥ -17Standard23SP SPQU06P SP P2 75 7 2.5P ① -42 For tUhrneiTfaiaedpdss For hard-to-machine materialsPowdered HSS356PM-PO PYU05ORDPB PO P3 70 6.2 5.5P ③ -93For stainless steels2349SU-SPSUMQU05OSPP2706.22.5P①-100PO PORU06P PO P3 5P ③ -17123HTTNMRU06P5HTP37575P④ -23 12349 SU-PO PUMRU05O PO P3 70 6.2 5P ③ -62 TNMRU06P1 1.5P ④ -23 For WhtihtwrTeoaardtphss 129 SU-HT TUMRU05O4 HT P3 70 6.2 4P ④ -89 Oversize 123 HT TNMSU06P5 HT P4 75 7 5P ④ -23TUMRU05O11.5P④ -89TNMSU06P11.5P④ -23 For cast Carbide ⑫⑬⑯ N-CT FC TCNRU05O3 HT P3 70 6.1 3P ⑤ -13 For left hand 23 SP LH SPQU06P--L SP P2 75 7 2.5P ① -78 For oSTncrseeawwitpnhgresm(aadcsShuinsMeeds ) irons TCNRU05O1 1.5P ⑤ -13 threadsFor helical coil wire⑱⑲㉑AL-HT STITWU05O1LEB5HTⅠb7575P⑦ -5Oxidizingscrew thread insertsTWU05O1LEBA1.5P⑦ -5PO LH PORU06P--L PO P3 5P ③ -47123SP OXSPQU06PXSPP27572.5P① -64PO OXPORU06PXPOP35P③ -36 For Pipe thTreaadpss Taps / 5/16-24UNF Long 23 LS-SP SPQU06PL10 SP P2 100 7 2.5P ① -90SPQU06PL15150① -90 FpoirpeAmtherTreicaaadpnss Standard 23 SP SPQU05M SP P2 70 6.2 2.5P ① -42POPOQU05MPO5P③ -17123HTTNMQU05M5HTP2706.25P④ -22 SPQU06PL20 200 ① -90LS-POPORU06PL10POP31005P③ -54PORU06PL15150③ -54 For MtinhiraTetauadrpess TNMQU05M1 1.5P ④ -22Oversize123HTTNMSU05M5HTP4706.25P④ -23TNMSU05M11.5P④ -23123LS-HT TNMQU06P515 HT P2 150 7 5P ④ -79TNMQU06P520200④ -79TNMQU06P1151501.5P④ -79 TNMQU06P120 200 ④ -79 For hard-to-machine materialsPowdered HSS356PM-PO PYU06PSDPB PO P4 75 7 5.5P ③ -93 Sizes-106 Codes shown in ( ) are available while supplies last.