Icons of main materials Free cutting Carbon steel Medium alloy steel High alloy steel Tool steel High tensile Ferritic and austenitic Austenitic stainless and structual steel and low alloy steel and heat treated steel strength steel stainless steel steel Martensitic stainless steel PH stainless steel Grey cast iron Nodular cast iron Austenitic cast iron ADI cast iron Alumiunm alloy (< 12% Si) Alumiunm alloy (> 12% Si) Copper alloy Brass alloy and bronze alloy HRSA (~35HRC) HRSA (35~45HRC) Titanium alloy Hardened steel TMap2s Tap selection Main Symbol Code Flute Class L Ds ℓc Product material page Note 1 TMap3s Taps 1 3/8-12UNF Standard P2 SP SMU22SXNEB SP 2B 170 28 2.5P SP-5 PO PMU22SXNEB PO 5P PO-5 TMap4s HT TMU22SXNEBC HT 2.5P HT-9 Oxidizing P1 P2 SP OX SMU22SXNEX SP 2B 170 28 2.5P SP-12 PO OX PMU22SXNEX PO 5P PO-12 TMap5s For stainless steels P4 M1 SP-VA SMU16SXGEX SP 2B 170 28 2.5P SP-30/PO-15 ~M2 Taps 1 1/2-6UNC TMap6s Standard P2 SP SGU24ZXNEB SP 2B 200 32 2.5P SP-5 PO PGU24ZXNEB PO 5P PO-5 TMap8s HT TGU24ZXNEBC HT 2.5P HT-9 Oxidizing P1 P2 SP OX SGU24ZXNEX SP 2B 200 32 2.5P SP-12 PO OX PGU24ZXNEX PO 5P PO-12 For stainless steels P4 M1 SP-VA SMU16SXGEX SP 2B 200 32 2.5P SP-30/PO-15 MTa1p0s ~M2 Taps 1 1/2-8UN MTa1p2s For stainless steels P4 M1 SP-VA SMU16SXGEX SP 2B 200 32 2.5P SP-30/PO-15 ~M2 Taps 1 1/2-12UNF M1T-Map7s Standard P2 SP SMU24SXNEB SP 2B 170 32 2.5P SP-5 PO PMU24SXNEB PO 5P PO-5 HT TMU24SXNEBC HT 2.5P HT-9 M9-MTa2p4s Oxidizing P1 P2 SP OX SMU24SXNEX SP 2B 170 32 2.5P SP-12 PO OX PMU24SXNEX PO 5P PO-12 For stainless steels P4 M1 SP-VA SMU16SXGEX SP 2B 170 32 2.5P SP-30/PO-15 ~M2 M25-MTa4p8s Taps 1 5/8-8UN For tUhnrTeifaaiedpdss For stainless steels P4 M1 SP-VA SMU16SXGEX SP 2B 200 32 2.5P SP-30/PO-15 ~M2 Taps 1 3/4-5UNC For WhtihtTwreaoaprdthss Standard P2 SP SGU287XNEB SP 2B 220 36 2.5P SP-5 PO PGU287XNEB PO 5P PO-5 HT TGU287XNEBC HT 2.5P HT-9 Oxidizing P1 P2 SP OX SGU287XNEX SP 2B 220 36 2.5P SP-12 For Pipe tThraepadss PO OX PGU287XNEX PO 5P PO-12 Taps 1 3/4-8UN For Pg thTreaapdss For stainless steels P4 M1 SP-VA SMU16SXGEX SP 2B 200 36 2.5P SP-30/PO-15 ~M2 Taps 1 3/4-12UNF Standard P2 SP SMU28SXNEB SP 2B 180 36 2.5P SP-5 PO PMU28SXNEB PO 5P PO-5 HT TMU28SXNEBC HT 2.5P HT-9 Oxidizing P1 P2 SP OX SMU28SXNEX SP 2B 180 36 2.5P SP-12 PO OX PMU28SXNEX PO 5P PO-12 Taps 2-8UN For stainless steels P4 M1 SP-VA SMU16SXGEX SP 2B 225 40 2.5P SP-30/PO-15 ~M2 Sizes-51 748 Codes shown in ( ) are available while supplies last.