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  Tap selection MainmaterialSymbol Code L Ds ℓc Productpage Tap selection MainmaterialSymbol Code L Ds ℓc Productpage TMap2s Note1 Note1 Taps / M1 × 0.25 Thread forming taps 12 N+RZfor steels NRZP41.2BP RO G4 36 3 4P ⑥ -14NRZP41.2BB2P⑥ -14TMap3s Standard 123 HT TNMP1.0B5 HT P1 36 3 5P ④ -5 NRZP51.2BP G5 4P ⑥ -14 TNMP1.0B1 1.5P ④ -5For left hand threads123HT LHTNMP1.0B5-LHTP13635P④ -64Thread forming taps⑱⑲㉑N+RS NRZP51.2BB 2P ⑥ -14NRSP41.2BPROG43634P⑥ -26TMap4s TNMP1.0B1-L 1.5P ④ -64 for non-ferrousmaterials NRSP41.2BB 2P ⑥ -26 Coating 129⑭ R+V RVP41.0BP RO G4 36 3 4P ⑥ -38⑱⑲㉑RVP41.0BB2P⑥ -38 NRSP51.2BP G5NRSP51.2BB 4P ⑥ -262P⑥ -26 TMap5s RVP51.0BP G5 4P ⑥ -38 Thread forming taps for dry tapping 123459⑲ OL+RZ OLRZP41.2BP RO G4 36 3 4P ⑥ -42 Thread forming taps 12 N+RZ RVP51.0BB 2P ⑥ -38 High performance thread forming taps 123459⑲ HP+RZ HRZP41.2BB RO G4 36 3 2P ⑥ -48NRZP41.0BPROG43634P⑥ -14Torqueless threadShort chamfer1239⑲㉑SC-TL-RZSRZM41.2B1ROG43631P⑥ -58TMap6s for steels NRZP41.0BB 2P ⑥ -14 forming taps Seamless 129 SURZ SURZ41.2BB RO G4 36 3 2P ⑥ -60 NRZP51.0BP G5NRZP51.0BB 4P ⑥ -142P⑥ -14Taps / M1.2 × 0.2 TMap8s Thread forming taps ⑱⑲㉑ N+RS NRSP41.0BP RO G4 36 3 4P ⑥ -26 Standard 123 HT TNMP1.2A5 HT P1 36 3 5P ④ -5 for non-ferrousmaterials NRSP41.0BB 2P ⑥ -26 TNMP1.2A1NRSP51.0BPG5NRSP51.0BB4P⑥ -262P⑥ -26Taps / M1.4 × 0.31.5P④ -5TMap1s0 Thread forming taps for dry tapping 123459⑲ OL+RZ OLRZP41.0BP RO G4 36 3 4P ⑥ -42 StandardHigh performance thread forming taps123459⑲HP+RZHRZP41.0BBROG43632P⑥ -4823SP SPP1.4C SP P1 36 3 2.5P ① -37SP 1.5PSY1.4CPNEBA1.5P① -56TMap1s2 Torqueless thread Short chamfer 1239⑲㉑ SC-TL-RZ SRZM41.0B1 RO G4 36 3 1P ⑥ -58 PO POP1.4C PO 5P ③ -13 forming taps Seamless 129 SURZ SURZ41.0BB RO G4 36 3 2P ⑥ -60 123 HT TNMP1.4C5 HT P1 36 3 5P ④ -5 TMap1s-M8.5 Taps / M1 × 0.2 TNMP1.4C1 1.5P ④ -5Oversize23POPOQ1.4CPOP23635P③ -13 Standard 123 HT TNMP1.0A5 HT P1 36 3 5P ④ -5 POR1.4C P3 ③ -13 TMap9s-M24 TNMP1.0A1 1.5P ④ -5 123 HT TNMR1.4C5 HT P3 36 3 5P ④ -5 Taps / M1.1 × 0.25 TNMR1.4C1 1.5P ④ -5For left hand threads123HT LHTNMP1.4C5-LHTP13635P④ -64TMap2s5-M48 Standard 123 HT TNMP1.1B5 HT P1 36 3 5P ④ -5 TNMP1.4C1-L 1.5P ④ -64 TNMP1.1B1Taps / M1.1 × 0.2 1.5P ④ -5 Oxidizing 123 SP OXPO OX SPP1.4CX SP P1 36 3 2.5P ① -63POP1.4CXPO5P③ -34TMap50s-M100Oversize123PO OXPOQ1.4CXPOP23635P③ -34 Standard 123 HT TNMP1.1A5 HT P1 36 3 5P ④ -5 CoatingTNMP1.1A11.5P④ -5 129⑭ R+V⑱⑲㉑ RVP41.4CP RO G4 36 3 4P ⑥ -38RVP41.4CB2P⑥ -38TtFahoprresUadnsified Taps / M1.2 × 0.25Standard 23 SP SPP1.2B SP P1 36 3 2.5P ① -37 Thread forming taps 12 N+RZ RVP51.4CP G5 4P ⑥ -38RVP51.4CB2P⑥ -38NRZP41.4CPROG43634P⑥ -14TtFahorpresWadhsitworth SP 1.5P SY1.2BPNEBA 1.5P ① -56 for steels NRZP41.4CB 2P ⑥ -14 PO POP1.2B PO 5P ③ -13123HTTNMP1.2B5HTP13635P④ -5 NRZP51.4CP G5NRZP51.4CB 4P ⑥ -142P⑥ -14 TFoaonrspSecwsrie(nwg mtSharceMhaidn)sesused TNMP1.2B1 1.5P ④ -5 For high carbon steels 235 HC+PO PCPP1.4C PO P1 36 3 5P ③ -76 Oversize 123 HT TNMR1.2B5 HT P3 36 3 5P ④ -5 For stainless steels 2349 SU-SPTNMR1.2B11.5P④ -512349SU+PO SUMP1.4C SP P1 36 3 2.5P ① -99PUPP1.4CPOP13635P③ -60TFaorpPsipe threads For left hand threads 123 HT LHCoating129⑭R+V TNMP1.2B5-L HT P1 36 3 5P ④ -64 For cast Carbide ⑫⑬⑯ N-CT FC TCNR1.4C3 HT P3 34 3 3P ⑤ -10TNMP1.2B1-L1.5P④ -64ironsTCNR1.4C11.5P⑤ -10RVP41.2BPROG43634P⑥ -38For aluminum⑱⑲㉑LA-HTTY1.4CQLEN5HTP23635P④-108TFpaoippresAtmhreeraicdasn ⑱⑲㉑ RVP41.2BB 2P ⑥ -38RVP51.2BPG54P⑥ -38 TY1.4CQLENA 1.5P ④-108Carbide⑲㉑N-CT LATCNR1.4C3AHTP33433P⑤ -3TFtahoprresMadinsiature RVP51.2BB 2P ⑥ -38 TCNR1.4C1A 1.5P ⑤ -3 For improvement, spec may change without advance notice. Sizes-45