Symbol of flute design Spiral Straight Spiral point Left hand spiral Roll Symbol of size Symbol of flute design SP HT PO SL RO Note 1: Product symbols shown in red mean the tap special for full rigid tapping Overall length Shank dia. Chanmfer length Drill hole shape L Ds ℓc P: B: Tap selection Main Symbol Code Flute Class L Ds ℓc Product Tap selection Main Symbol Code Flute Class L Ds ℓc Product MTa2ps material page material page Note 1 Note 1 For nickel base alloys P3 P4 M1 ZEN-B SDU05OYJPX SP 2BX 90 8 3P SP-39 ~M3 Taps No.12-24UNC MTa3ps S1 ~S2 ZEN-P PDU05OYJPW PO 4.5P PO-19 Standard P2 SP SDUNCMXNEB SP 2B 80 6 2.5P SP-4 Taps 5/16-24UNF PO PDUNCMXNEB PO 5P PO-4 MTa4ps HT TDUNCMXNEBC HT 2.5P HT-8 Standard P2 SP SMU05MXNEB SP 2B 90 6 2.5P SP-4 Oxidizing P1 P2 SP OX SDUNCMXNEX SP 2B 80 6 2.5P SP-11 PO PMU05MXNEB PO 5P PO-5 PO OX PDUNCMXNEX PO 5P PO-11 HT TMU05MXNEBC HT 2.5P HT-8 MTa5ps Taps No.12-28UNF Oxidizing P1 P2 SP OX SMU05MXNEX SP 2B 90 6 2.5P SP-11 PO OX PMU05MXNEX PO 5P PO-11 Standard P2 SP SDUNCKXNEB SP 2B 80 6 2.5P SP-4 For stainless steels P4 M1 SP-VA SMU05MXGEX SP 2B 90 6 2.5P SP-29 TMa6ps ~M2 PO PDUNCKXNEB PO 5P PO-4 P1 P2 P3 P4 M1 PO-VA PMU05MYGEX PO 2BX 90 6 4.5P PO-15 HT TDUNCKXNEBC HT 2.5P HT-8 ~M3 Oxidizing P1 P2 SP OX SDUNCKXNEX SP 2B 80 6 2.5P SP-11 For titanium alloys S5 ZET-B SMU05MYIPN SP 2BX 90 6 3P SP-41 TMa8ps PO OX PDUNCKXNEX PO 5P PO-11 For nickel base alloys P3 P4 M1 ZEN-B SMU05MYJPX SP 2BX 90 6 3P SP-39 ~M3 S1 ~S2 ZEN-P PMU05MYJPW PO 4.5P PO-19 Taps 1/4-20UNC MTa1p0s Standard P2 SP SDU04NXNEB SP 2B 80 7 2.5P SP-4 Taps 3/8-16UNC PO PDU04NXNEB PO 5P PO-5 Standard P2 SP SDU06PXNEB SP 2B 100 9 2.5P SP-4 HT TDU04NXNEBC HT 2.5P HT-8 PO PDU06PXNEB PO 5P PO-5 MTa1p2s Oxidizing P1 P2 SP OX SDU04NXNEX SP 2B 80 7 2.5P SP-11 HT TDU06PXNEBC HT 2.5P HT-8 PO OX PDU04NXNEX PO 5P PO-11 Oxidizing P1 P2 SP OX SDU06PXNEX SP 2B 100 9 2.5P SP-11 For stainless steels P4 M1 SP-VA SDU04NXGEX SP 2B 80 7 2.5P SP-29 PO OX PDU06PXNEX PO 5P PO-11 MTa1ps-M7 ~M2 P1 P2 P3 For stainless steels P4 M1 SP-VA SDU06PXGEX SP 2B 100 9 2.5P SP-29 ~M2 P4 M1 PO-VA PDU04NYGEX PO 2BX 80 7 4.5P PO-15 ~M3 P1 P2 P3 P4 M1 PO-VA PDU06PYGEX PO 2BX 100 9 4.5P PO-15 TMa9ps-M24 For titanium alloys S5 ZET-B SDU04NYIPN SP 2BX 80 7 3P SP-41 ~M3 For nickel base alloys P3 P4 M1 ZEN-B SDU04NYJPX SP 2BX 80 7 3P SP-39 For titanium alloys S5 ZET-B SDU06PYIPN SP 2BX 100 9 3P SP-41 ~M3 S1 M1 ~S2 For nickel base alloys ZEN-P PDU04NYJPW PO 4.5P PO-19 P3 P4 ~M3 ZEN-B SDU06PYJPX SP 2BX 100 9 3P SP-39 S1 MTa2p5s-M48 ~S2 ZEN-P PDU06PYJPW PO 4.5P PO-19 Taps 1/4-28UNF Standard P2 SP SDU04KXNEB SP 2B 80 7 2.5P SP-4 Taps 3/8-24UNF FtThaorpresUadnsified PO PDU04KXNEB PO 5P PO-5 Standard P2 SP SMU06MXNEB SP 2B 100 7 2.5P SP-4 HT TDU04KXNEBC HT 2.5P HT-8 PO PMU06MXNEB PO 5P PO-5 Oxidizing P1 P2 SP OX SDU04KXNEX SP 2B 80 7 2.5P SP-11 HT TMU06MXNEBC HT 2.5P HT-8 FtThoarrepWasdhsitworth PO OX PDU04KXNEX PO 5P PO-11 Oxidizing P1 P2 SP OX SMU06MXNEX SP 2B 100 7 2.5P SP-11 For stainless steels P4 M1 SP-VA SDU04KXGEX SP 2B 80 7 2.5P SP-29 PO OX PMU06MXNEX PO 5P PO-11 ~M2 P1 P2 P3 For stainless steels P4 M1 SP-VA SMU06MXGEX SP 2B 100 7 2.5P SP-29 FToarpPispe threads ~M2 P4 M1 PO-VA PDU04KYGEX PO 2BX 4.5P PO-15 ~M3 P1 P2 P3 P4 M1 PO-VA PMU06MYGEX PO 2BX 100 7 4.5P PO-15 For titanium alloys S5 ZET-B SDU04KYIPN SP 2BX 80 7 3P SP-41 ~M3 For nickel base alloys P3 P4 M1 ZEN-B SDU04KYJPX SP 2BX 80 7 3P SP-39 For titanium alloys S5 ZET-B SMU06MYIPN SP 2BX 100 7 3P SP-41 FToarpPsg threads ~M3 S1 M1 ~S2 For nickel base alloys ZEN-P PDU04KYJPW PO 4.5P PO-19 P3 P4 ~M3 ZEN-B SMU06MYJPX SP 2BX 100 7 3P SP-39 S1 ~S2 ZEN-P PMU06MYJPW PO 4.5P PO-19 Taps 5/16-18UNC Standard P2 SP SDU05OXNEB SP 2B 90 8 2.5P SP-4 Taps 7/16-14UNC PO PDU05OXNEB PO 5P PO-5 Standard P2 SP SGU07QXNEB SP 2B 100 8 2.5P SP-4 HT TDU05OXNEBC HT 2.5P HT-8 PO PGU07QXNEB PO 5P PO-5 Oxidizing P1 P2 SP OX SDU05OXNEX SP 2B 90 8 2.5P SP-11 HT TGU07QXNEBC HT 2.5P HT-8 PO OX PDU05OXNEX PO 5P PO-11 Oxidizing P1 P2 SP OX SGU07QXNEX SP 2B 100 8 2.5P SP-11 For stainless steels P4 M1 SP-VA SDU05OXGEX SP 2B 90 8 2.5P SP-29 PO OX PGU07QXNEX PO 5P PO-11 ~M2 P1 P2 P3 For stainless steels P4 M1 SP-VA SGU07QXGEX SP 2B 100 8 2.5P SP-29 ~M2 P4 M1 PO-VA PDU05OYGEX PO 2BX 90 8 4.5P PO-15 ~M3 P1 P2 P3 P4 M1 PO-VA PGU07QYGEX PO 2BX 100 8 4.5P PO-15 For titanium alloys S5 ZET-B SDU05OYIPN SP 2BX 90 8 3P SP-41 ~M3 Sizes-48 For improvement, spec may change without advance notice. 745