Icons of main materials 1 Low carbon steel 2 Medium carbon steel 3 High carbon steel 4 Alloy steel 5 Thermal refined steel(25~35HRC) 6 Thermal refined steel(35~45HRC) 7 Thermal refined steel(45~55HRC) 8 Thermal refined steel(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 M2s Main Product Main Product L Ds ℓc L Ds ℓc Class Class Flute Flute p Tap selection Symbol Code Tap selection Symbol Code Ta material page material page Note1 Note1 For plastics ㉔ ④-118 Taps / M3.5 × 0.6 PL1 TPLM3.5H3 HT P5 52 5 3P M3s ap Thread forming taps 1234 OL+RZ OLRZP53.5HP RO G5 52 5 4P ⑥-42 T for dry tapping 59⑲ Standard 23 SP SPP3.5H SP P1 52 5 2.5P ①-37 OLRZP63.5HP G6 ⑥-42 +SP SNPP3.5H ①-55 High performance 1234 HP+RZ HRZP53.5HP RO G5 52 5 4P ⑥-48 M4s thread forming taps 59⑲ ap SP 1.5P SY3.5HPNEBA 1.5P ①-56 HRZP53.5HB 2P ⑥-48 T PO POQ3.5H PO P2 5P ③-13 HRZP63.5HP G6 4P ⑥-48 +PO PNPQ3.5H ③-30 HRZP63.5HB 2P ⑥-48 M5s Ta p 123 HT TNMQ3.5H5 HT P2 52 5 5P ④-6 For deep hole use 234⑬ S-SP SSMP3.5H-3 SP P1 52 5 2.5P ①-121 TNMQ3.5H1 1.5P ④-6 1234 S-PO PSMQ3.5H PO P2 52 5 5P ③-73 Oversize 23 SP SPQ3.5H SP P2 52 5 2.5P ①-37 Oversize 234⑬ S-SP SSMQ3.5H SP P2 52 5 2.5P ①-121 M6s p Ta SPR3.5H P3 ①-37 Nut taps 12 NT NH23.5H HT Ⅱb 95 2.6 25P ⑦-27 ①-37 Taps / M3.5 × 0.35 SPS3.5H P4 PO POR3.5H PO P3 5P ③-13 M8s T ap POS3.5H P4 ③-13 Standard 23 SP SPP3.5D SP P1 52 5 2.5P ①-37 123 HT TNMR3.5H5 HT P3 52 5 5P ④-6 PO POQ3.5D PO P2 5P ③-13 0 TNMR3.5H1 1.5P ④-6 123 HT TNMQ3.5D5 HT P2 52 5 5P ④-6 M1ps Ta TNMS3.5H5 P4 5P ④-6 TNMQ3.5D1 1.5P ④-6 TNMS3.5H1 1.5P ④-6 Thread forming taps ⑱⑲㉑ N-RS NRSM53.5DP RO G5 52 5 4P ⑥-28 for non-ferrous ⑥-28 M1 2 For left hand threads 123 HT LH TNMQ3.5H5-L HT P2 52 5 5P ④-64 NRSM53.5DB 2P ps materials Ta TNMQ3.5H1-L 1.5P ④-64 NRSM63.5DP G6 4P ⑥-28 Oxidizing 123 SP OX SPP3.5HX SP P1 52 5 2.5P ①-63 NRSM63.5DB 2P ⑥-28 .5 ③-34 M8 s Taps / M4.5 × 0.75 PO OX POQ3.5HX PO P2 5P - p M1 Ta For soft structural steels 12 E-SP ESHMP3.5H SP P1 52 5 2.5P ①-128 Thread forming taps 12 N+RZ NRZP53.5HP RO G5 52 5 4P ⑥-15 Standard 23 SP SPQ4.5J SP P2 60 5.5 2.5P ①-37 24 for steels NRZP53.5HB 2P ⑥-15 PO POQ4.5J PO 5P ③-13 -M s M9 Tap NRZP63.5HP G6 4P ⑥-15 123 HT TNMQ4.5J53 HT P2 60 5.5 5P ④-7 NRZP63.5HB 2P ⑥-15 TNMQ4.5J13 1.5P ④-7 48 5-M ps NRZP73.5HP G7 4P ⑥-15 For medium hardness carbon steels 345 MHSL 1109101045 SL P3 70 5.5 5P ②-4 M2 Ta NRZP73.5HB 2P ⑥-15 Long 345 MHSL 2109101045 SL P3 100 5.5 5P ②-4 For medium hardness carbon steels 345 MHSL 1109101038 SL P3 63 5 5P ②-4 Nut taps 12 NT NH24.5J HT Ⅱb 105 3.3 25P ⑦-27 100 0-M s Long 345 ②-4 Taps / M4.5 × 0.5 MHSL 2109101038 SL P3 100 5 5P M5 Tap For stainless steels 2349 SU+SP SUPP3.5H SP P1 52 5 2.5P ①-98 ed 123 nifi 49 SU-PO PUMQ3.5H PO P2 52 5 5P ③-60 Standard 23 SP SPP4.5G SP P1 60 5.5 2.5P ①-37 r U ads Fo r e s t h p 129 SU-HT TUMQ3.5H4 HT P2 52 5 4P ④-88 PO POQ4.5G PO P2 5P ③-13 Ta TUMQ3.5H1 1.5P ④-88 123 HT TNMQ4.5G5 HT P2 60 5.5 5P ④-7 h ort Oversize 2349 SU+SP 2.5P ①-98 1.5P ④-7 itw SUPR3.5H SP P3 52 5 TNMQ4.5G1 Wh ds For threa s For hard-to- 123 Ta p machine materials 49 SU2-SP SU2MQ3.5H SP P2 52 5 3P ①-114 Oxidizing 123 SP OX SPP4.5GX SP P1 60 5.5 2.5P ①-63 For cast irons ⑫⑬ ④-92 Taps / M5.5 × 0.9 FC-HT TY3.5HRAEN5 HT P3 52 5 5P ed ds us threa es TY3.5HRAENA 1.5P ④-92 crew hin For S ing mac ) e w on s s(S M Carbide ⑫⑬⑯ N-CT FC TCNR3.5H3 HT P3 48 4 3P ⑤-11 Standard 23 SP SPQ5.5L SP P2 62 6 2.5P ①-38 p Ta TCNR3.5H1 1.5P ⑤-11 PO POQ5.5L PO 5P ③-14 ads For aluminum ⑮⑯⑰⑱ AL+SP ASHPQ3.5H SP P2 52 5 2.5P ①-134 123 HT TNMQ5.5L5 HT P2 62 6 5P ④-7 thre s For P ipe Ta p ⑲⑳㉑ AL-SP 1.5P SY3.5HQLENA 1.5P ①-135 TNMQ5.5L1 1.5P ④-7 ⑱⑲㉑ LA-HT TY3.5HQLEN5 HT P2 52 5 5P ④-108 Nut taps 12 NT NH25.5L HT Ⅱb 115 4.1 24P ⑦-27 can eri Am ds 1.5P ④-108 Taps / M5.5 × 0.75 TY3.5HQLENA For threa s e p pip Ta Carbide ⑲㉑ N-CT LA TCNR3.5H3A HT P3 48 4 3P ⑤-3 TCNR3.5H1A 1.5P ⑤-3 Standard 123 HT TNMQ5.5J5 HT P2 62 6 5P ④-7 ure iat Min ads Thread forming taps ⑱⑲㉑ ⑥-27 1.5P ④-7 For e N+RS NRSP53.5HP RO G5 52 5 4P TNMQ5.5J1 thr ps Ta for non-ferrous NRSP53.5HB 2P ⑥-27 materials NRSP63.5HP G6 4P ⑥-27 NRSP63.5HB 2P ⑥-27 NRSP73.5HP G7 4P ⑥-27 Sizes-50 Codes shown in ( ) are available while supplies last.