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 M3s p Taps / 3/4-16UNF Taps / 7/8-14UNF Ta 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 M4s T ap 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 Oversize 123 HT TNMSU12P5 HT P4 105 15 5P ④-24 Oxidizing 123 SP OX SPRU14QX SP P3 115 17 2.5P ①-64 M5s Ta p TNMSU12P1 1.5P ④-24 PO OX PORU14QX PO 5P ③-36 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 Oxidizing 123 SP OX SPRU12PX SP P3 105 15 2.5P ①-64 LS-PO PORU14QL20 PO 5P ③-54 M6s p Ta PO OX PORU12PX PO 5P ③-36 123 LS-HT TNMRU14Q115 HT P3 150 17 1.5P ④-80 Long 23 LS-SP SPRU12PL15 SP P3 150 15 2.5P ①-90 TNMRU14Q120 200 ④-80 SPRU12PL20 200 ①-90 For stainless steels 2349 SU-SP SUMRU14Q SP P3 115 17 2.5P ①-101 M8s p Ta ③-54 Taps / 7/8-20UNEF LS-PO PORU12PL15 PO 150 5P PORU12PL20 200 ③-54 0 123 LS-HT TNMRU12P515 HT P3 150 15 5P ④-80 Standard 23 SP SPQU14N SP P2 115 17 2.5P ①-42 M1ps Ta TNMRU12P520 200 ④-80 123 HT TNMRU14N5 HT P3 115 17 5P ④-24 TNMRU12P115 150 1.5P ④-80 TNMRU14N1 1.5P ④-24 2 ④-80 Taps / 1 -8UNC TNMRU12P120 200 M1ps Ta For hard-to- machine materials Powdered HSS 356 PM-PO PYU12PSDPB PO P4 105 15 5.5P ③-93 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 .5 129 ④-90 ③-18 M8 s SU-HT TUMRU12P4 HT P3 105 15 4P PO POSU16X PO P4 5P - p M1 Ta TUMRU12P1 1.5P ④-90 123 HT TNMSU16X5 HT P4 125 19 5P ④-24 For cast Carbide ⑫⑬⑯ N-CT FC TCNSU12P3 HT P4 95 14 3P ⑤-14 TNMSU16X1 1.5P ④-24 24 irons -M s TCNSU12P1 1.5P ⑤-14 For left hand 123 HT LH TNMSU16X5-L HT P4 125 19 5P ④-70 M9 ap T threads For helical coil wire ⑱⑲㉑ AL-HT STI TWU12P1LEB5 HT Ⅰb 115 17 5P ⑦-5 TNMSU16X1-L 1.5P ④-70 screw thread inserts TWU12P1LEBA 1.5P ⑦-5 Oxidizing 123 SP OX SPRU16XX SP P3 125 19 2.5P ①-64 48 ③-36 5-M ps Taps / 3/4-20UNEF PO OX POSU16XX PO P4 5P M2 Ta Long 23 LS-SP SPRU16XL15 SP P3 150 19 2.5P ①-90 Standard 23 SP SPQU12N SP P2 105 15 2.5P ①-42 SPRU16XL20 200 ①-90 100 0-M s PO PORU12N PO P3 5P ③-18 LS-PO POSU16XL15 PO P4 150 5P ③-54 M5 Tap 123 HT TNMRU12N5 HT P3 105 15 5P ④-24 POSU16XL20 200 ③-54 ed 1.5P ④-24 123 ④-80 nifi TNMRU12N1 LS-HT TNMRU16X515 HT P3 150 19 5P r U ds Fo rea s t h p ④-80 Taps / 7/8-9UNC TNMRU16X520 200 Ta TNMRU16X525 250 ④-80 h ort Standard 23 P3 115 17 2.5P ①-42 1.5P ④-80 itw SP SPRU14W SP TNMRU16X115 150 Wh ds For threa s Ta p PO POSU14W PO P4 5P ③-18 TNMRU16X120 200 ④-80 123 HT TNMSU14W5 HT P4 115 17 5P ④-24 TNMRU16X125 250 ④-80 ed ds us For hard-to- threa es 1.5P ④-24 356 machine materials Powdered HSS TNMSU14W1 PM-PO PYU16XUDPB PO P6 125 19 5.5P ③-93 crew hin For S ing mac ) e w on s s(S M For left hand 123 HT LH TNMSU14W5-L HT P4 115 17 5P ④-70 For stainless steels 2349 SU-SP SUMRU16X SP P3 125 19 2.5P ①-101 p Ta threads 1.5P ④-70 123 TNMSU14W1-L For heavy-industrial large parts 49 HVSP SYU16XTEEXJ SP P5 160 19 2.5P ①-24 ads Oxidizing 123 P3 115 17 2.5P ①-64 Taps / 1 -12UNF SP OX SPRU14WX SP thre s Pipe p For Ta PO OX POSU14WX PO P4 5P ③-36 Long 23 LS-SP SPRU14WL15 SP P3 150 17 2.5P ①-90 Standard 23 SP SPRU16S SP P3 125 19 2.5P ①-42 can eri Am ds SPRU14WL20 200 ①-90 PO POSU16S PO P4 5P ③-18 For threa s e p pip Ta LS-PO POSU14WL20 PO P4 5P ③-54 123 HT TNMSU16S5 HT P4 125 19 5P ④-24 re 123 LS-HT TNMRU14W520 HT P3 200 17 5P ④-80 TNMSU16S1 1.5P ④-24 iatu Min ds 1.5P ④-80 For left hand 123 ④-70 For threa s TNMRU14W120 HT LH TNMSU16S5-L HT P4 125 19 5P p Ta threads For stainless steels 2349 SU-SP SUMRU14W SP P3 115 17 2.5P ①-101 TNMSU16S1-L 1.5P ④-70 Sizes-110 Codes shown in ( ) are available while supplies last.