SEC-Threading Tools SSTE Type / SSTI Type ■ Inserts (For internal diameter) 3.81 SSTI Type Standard Depth of Cut and Number of Passes F75 Internal ø3.94 PDY ø9.525 PDX 3-RE ● General purpose 60° /55°thread (without wiper edge) Dimensions (mm) ● US NPT 60°(with wiper edge) Dimensions (mm) X Y Nose X Y Nose Included Stock Pitch direction direction radius Pcs/ Included Stock Pitch direction direction radius Pcs/ Cat. No. Cat. No. angle Pack angle Pack AC530U mm Threads/inch PDX PDY RE AC530U mm Threads/inch PDX PDY RE 16IR A60-CB D 0.5 to 1.5 16 to 48 0.8 0.5 0.09 16IR 27NPT-CB D Q 27 0.8 0.6 0.06 60° 16IR AG60-CB D 0.5 to 3.0 8 to 48 1.5 1.1 0.10 5 16IR 18NPT-CB D Q 18 0.8 0.6 0.06 16IR G60-CB D 2.0 to 3.0 8 to 14 1.5 1.1 0.18 60° 16IR 14NPT-CB D Q 14 1.5 1.1 0.08 5 16IR A55-CB D Q 16 to 48 0.8 0.5 0.05 16IR 115NPT-CB D Q 11.5 1.5 1.0 0.08 55° 16IR AG55-CB D Q 8 to 48 1.5 1.1 0.08 5 16IR 08NPT-CB D Q 8 1.5 1.0 0.13 16IR G55-CB D Q 8 to 14 1.5 1.1 0.20 ● Tapered pipe thread / BSPT 55°(with wiper edge) Dimensions (mm) ● ISO Metric thread 60°(with wiper edge) Dimensions (mm) X Y Nose F Included Stock Pitch direction direction radius Pcs/ X Y Nose Cat. No. Included Stock Pitch angle Pack Cat. No. direction direction radius Pcs/ AC530U mm Threads/inch PDX PDY RE angle Pack Threading AC530U mm Threads/inch PDX PDY RE 55° 16IR 28BSPT-CB D Q 28 0.8 0.6 0.13 5 Tools 16IR 075 ISO-CB D 0.75 Q 0.5 0.9 0.04 16IR 19BSPT-CB D Q 19 0.8 0.6 0.18 16IR 100 ISO-CB D 1.00 Q 0.8 0.6 0.06 16IR 125 ISO-CB D 1.25 Q 0.8 0.6 0.07 ● US NPTF 60°(with wiper edge) Dimensions (mm) 60° 16IR 150 ISO-CB D 1.50 Q 0.8 0.6 0.09 5 Included Stock Pitch X Y Nose Grooving direction direction radius Pcs/ 16IR 175 ISO-CB D 1.75 Q 1.5 1.0 0.10 angle Cat. No. Pack 16IR 200 ISO-CB D 2.00 Q 1.5 1.1 0.13 AC530U mm Threads/inch PDX PDY RE Cut-Off 16IR 250 ISO-CB D 2.50 Q 1.5 1.1 0.15 16IR 27NPTF-CB D Q 27 0.8 0.6 0.06 Threading 16IR 300 ISO-CB D 3.00 Q 1.5 1.1 0.19 16IR 18NPTF-CB D Q 18 0.8 0.6 0.08 60° 16IR 14NPTF-CB D Q 14 1.5 1.0 0.13 5 ● Unified thread 60°(with wiper edge) Dimensions (mm) 16IR 115NPTF-CB D Q 11.5 1.5 1.0 0.08 X Y Nose 16IR 08NPTF-CB D Q 8 1.5 1.1 0.13 Included Stock Pitch direction direction radius Pcs/ Cat. No. angle AC530U mm Threads/inch PDX PDY RE Pack ● UNJ 60°(with wiper edge) Dimensions (mm) 16IR 32UN-CB D Q 32 0.5 0.9 0.04 Included Stock Pitch X Y Nose direction direction radius Pcs/ 16IR 28UN-CB D Q 28 0.8 0.6 0.06 angle Cat. No. Pack 16IR 24UN-CB D Q 24 0.8 0.7 0.06 AC530U mm Threads/inch PDX PDY RE 16IR 20UN-CB D Q 20 0.8 0.6 0.08 16IR 32UNJ-CB D Q 32 0.5 0.9 0.04 16IR 18UN-CB D Q 18 0.8 0.6 0.08 16IR 28UNJ-CB D Q 28 0.8 0.6 0.05 60° 16IR 16UN-CB D Q 16 0.8 0.7 0.09 5 16IR 24UNJ-CB D Q 24 0.8 0.6 0.06 16IR 14UN-CB D Q 14 1.5 1.1 0.13 16IR 20UNJ-CB D Q 20 0.8 0.6 0.06 16IR 13UN-CB D Q 13 1.5 1.1 0.11 60° 16IR 18UNJ-CB D Q 18 0.8 0.6 0.06 5 16IR 12UN-CB D Q 12 1.5 1.1 0.13 16IR 16UNJ-CB D Q 16 0.8 0.6 0.09 16IR 10UN-CB D Q 10 1.5 1.1 0.15 16IR 14UNJ-CB D Q 14 1.5 1.1 0.09 16IR 08UN-CB D Q 8 1.5 1.1 0.20 16IR 12UNJ-CB D Q 12 1.5 1.1 0.11 16IR 10UNJ-CB D Q 10 1.5 1.1 0.15 ● Parallel pipe thread /Whitworth 55°(with wiper edge) Dimensions (mm) X Y Nose ■ Insert Identification Included Stock Pitch direction direction radius Pcs/ Cat. No. angle AC530U mm Threads/inch PDX PDY RE Pack (Example) 16 I R 150 ISO - CB 16IR 28W-CB D Q 28 0.8 0.6 0.12 55° 16IR 24W-CB D Q 24 0.8 0.6 0.14 5 ① Insert size ③ Feed direction ④ Pitch or number of threads ⑤ Thread type ⑥ Chipbreaker 16IR 20W-CB D Q 20 0.8 0.6 0.18 Meter= Pitch ×100 times With wiper edge Symbol Inscribed circle (mm) Symbol Direction Wiper edge Symbol Type Symbol Contents 16IR 19W-CB D Q 16 9.525 R Right Inch= Threads/inch ISO Meter thread CB With breaker 19 0.8 0.6 0.18 (115 only when 11.5) UN Unified thread (Example) 075: Pitch 0.75 mm ② External/Internal 150: pitch 1.5 mm W Witworth Yes 20: 20 threads/inch NPT Taper for US pipes Symbol Distinction E External Symbol Pitch/number of threads BSPT Tapered pipe thread Without wiper edge Pitch: 0.5–1.5 mm NPTF Taper for US pipes I Internal A Number of threads: 16–48 Pitch: 0.5–3.0 mm UNJ For aerospace instruments AG Number of threads: 8–48 60 General purpose 60°thread No Pitch: 2.0–3.0 mm G Number of threads: 8–14 55 General purpose 55°thread Warning: The red values have changed since those listed in the 2015-2016 Comprehensive Catalog. F71