
Symbol of flute design Spiral Straight Spiral point Left hand spiral Roll Symbol of size Symbol of flute design SP HT PO SL RO Overall length Shank dia. Chamfer length Note 1: Product symbols shown in red mean the Drill hole shape tap suitable for synchronized feed tapping. L Ds ℓc P: B: M2 Main Product Main Product L Ds ℓc L Ds ℓc Class Class Flute Flute Tap selection Symbol Code Tap selection Symbol Code Ta ps material page material page Note1 Note1 Oxidizing 123 P3 125 19 2.5P ①-64 Taps / 1 1/8-14UNS SP OX SPRU16SX SP M3 Long 23 LS-SP SPRU16SL20 SP P3 200 19 2.5P ①-90 Ta ps LS-PO POSU16SL20 PO P4 5P ③-54 Standard 23 SP SPRU18Q SP P3 135 23 2.5P ①-42 123 ④-80 Taps / 1 3/16-12UN LS-HT TNMRU16S515 HT P3 150 19 5P M4 TNMRU16S115 1.5P ④-80 Ta ps For hard-to- machine materials Powdered HSS 356 PM-PO PYU16STDPB PO P5 125 19 5.5P ③-93 Standard 123 HT TNMSU19S5 HT P4 145 24 5P ④-24 For stainless steels 2349 SU-SP SUMRU16S SP P3 125 19 2.5P ①-101 TNMSU19S1 1.5P ④-24 M5 123 Ta For heavy-industrial large parts P4 160 19 2.5P ①-24 ps Taps / 1 1/4-7UNC HVSP SYU16SSEEXJ SP 49 Taps / 1 -14UNS Standard 23 SP SPMSU20Y SP P4 145 24 2.5P ①-42 M6 Ta Standard 23 SP SPRU16Q SP P3 125 19 2.5P ①-42 PO POMSU20Y PO 5P ③-18 ps PO POSU16Q PO P4 5P ③-18 123 HT TNMTU20Y5 HT P5 145 24 5P ④-24 123 HT TNMSU16Q5 HT P4 125 19 5P ④-24 TNMTU20Y1 1.5P ④-24 M8 Ta 1.5P ④-24 123 ps TNMSU16Q1 For heavy-industrial large parts 49 HVSP SYU20YUEEXJ SP P6 180 24 2.5P ①-24 Taps / 1 -20UNEF Taps / 1 1/4-8UN M1 Ta 0 ps Standard 23 SP SPQU16N SP P2 125 19 2.5P ①-42 Standard 23 SP SPMRU20X SP P3 145 24 2.5P ①-42 123 HT TNMRU16N5 HT P3 125 19 5P ④-24 123 HT TNMTU20X5 HT P5 145 24 5P ④-24 TNMRU16N1 1.5P ④-24 TNMTU20X1 1.5P ④-24 M1 Ta 2 ps 123 For heavy-industrial large parts P5 180 24 2.5P ①-24 Taps / 1 1/16-12UN HVSP SYU20XTEEXJ SP 49 Standard 123 HT TNMSU17S5 HT P4 130 20 5P ④-24 Taps / 1 1/4-12UNF M1 Ta -M ps 8.5 TNMSU17S1 1.5P ④-24 Standard 23 SP SPMRU20S SP P3 145 24 2.5P ①-42 ③-18 Taps / 1 1/16-14UNS PO POMSU20S PO P4 5P M9 123 HT TNMSU20S5 HT P4 145 24 5P ④-24 Ta -M ps 24 Standard 123 HT TNMSU17Q5 HT P4 130 20 5P ④-24 TNMSU20S1 1.5P ④-24 1.5P ④-24 123 TNMSU17Q1 For heavy-industrial large parts 49 HVSP SYU20SSEEXJ SP P4 180 24 2.5P ①-24 M2 Ta 5-M Taps / 1 1/8-7UNC Taps / 1 5/16-12UN ps 48 Standard 23 SP SPSU18Y SP P4 135 23 2.5P ①-42 Standard 123 HT TNMSU21S5 HT P4 155 28 5P ④-25 M5 PO POSU18Y PO 5P ③-18 TNMSU21S1 1.5P ④-25 Ta 0-M1 ps 00 123 ④-24 Taps / 1 3/8-6UNC HT TNMTU18Y5 HT P5 135 23 5P Fo TNMTU18Y1 1.5P ④-24 rU thr nifie e 123 Ta ads d For heavy-industrial large parts 49 HVSP SYU18YUEEXJ SP P6 180 23 2.5P ①-24 Standard 23 SP SPMSU22Z SP P4 155 28 2.5P ①-42 ps ③-18 Taps / 1 1/8-8UN PO POMTU22Z PO P5 5P For 123 ④-25 W HT TNMTU22Z5 HT P5 155 28 5P thr hitwo e r Ta ads th Standard 23 SP SPRU18X SP P3 135 23 2.5P ①-42 TNMTU22Z1 1.5P ④-25 ps 123 123 HT TNMTU18X5 HT P5 135 23 5P ④-24 For heavy-industrial large parts 49 HVSP SYU22ZUEEXJ SP P6 200 28 2.5P ①-24 For S crew 1.5P ④-24 on se threads Taps / 1 3/8-8UN TNMTU18X1 w us Ta ing machi ed 123 ps( nes For heavy-industrial large parts 49 HVSP SYU18XTEEXJ SP P5 180 23 2.5P ①-24 M)S Standard 23 P3 155 28 2.5P ①-42 Taps / 1 1/8-12UNF SP SPMRU22X SP 123 HT TNMTU22X5 HT P5 155 28 5P ④-25 For P Ta ipe th ps read Standard 23 SP SPRU18S SP P3 135 23 2.5P ①-42 TNMTU22X1 1.5P ④-25 s ③-18 123 PO POSU18S PO P4 5P For heavy-industrial large parts 49 HVSP SYU22XTEEXJ SP P5 200 28 2.5P ①-24 For A 123 ④-24 pip meric Taps / 1 3/8-12UNF HT TNMSU18S5 HT P4 135 23 5P e a Ta thre n ps ads TNMSU18S1 1.5P ④-24 123 For heavy-industrial large parts 49 HVSP SYU18SSEEXJ SP P4 180 23 2.5P ①-24 Standard 23 SP SPMRU22S SP P3 155 28 2.5P ①-42 For M thr iniatu ③-18 e Ta ads re PO POMSU22S PO P4 5P ps 123 HT TNMSU22S5 HT P4 155 28 5P ④-25 TNMSU22S1 1.5P ④-25 Oxidizing 123 PO OX POMSU22SX PO P4 155 28 5P ③-36 123 For heavy-industrial large parts 49 HVSP SYU22SSEEXJ SP P4 200 28 2.5P ①-25 For improvement, spec may change without advance notice. Sizes-111