THREADING U-Type PDX PDY PDX RE PDX PDY RE IR/L-UN (Continued) RE Internal American UN Full Profile PDY IC (UN, UNC, UNF, UNEF) lNSL lNSL lNSL Laydown Threading Inserts for General Industry IC IC Internal left-hand shown NUT 1/4 TP Dimensions Tough 1 Hard 60° 1/8 TP IC1007 SCREW IC50M IC228 IC928 IC250 IC508 IC808 IC908 IC08 Designation IC TPI(4) RE INSL PDY PDX CICT(5) 16IR 18 UN 9.52 18.0 0.08 16.49 0.7 0.8 1 • • 16IRB 18 UN (1) 9.52 18.0 0.08 16.49 0.7 0.8 1 • 16IRM 18 UN (1) 9.52 18.0 0.08 16.49 0.8 1.0 1 • • 16IL 16 UN 9.52 16.0 0.11 16.49 1.0 1.1 1 • 16IR 16 UN 9.52 16.0 0.11 16.49 0.9 1.1 1 • • 16IR 16 UN-2M (2) 9.52 16.0 0.09 16.49 1.5 2.3 2 • • 16IRB 16 UN (3) 9.52 16.0 0.11 16.49 0.9 1.1 1 • 16IRM 16 UN (1) 9.52 16.0 0.09 16.49 0.9 1.1 1 • • • 16IL 14 UN 9.52 14.0 0.10 16.49 0.9 1.1 1 • • 16IR 14 UN 9.52 14.0 0.13 16.49 0.9 1.1 1 • • 16IRB 14 UN (1) 9.52 14.0 0.13 16.49 0.9 1.1 1 • 16IRM 14 UN (1) 9.52 14.0 0.11 16.49 0.9 1.2 1 • • • • 16IL 12 UN 9.52 12.0 0.12 16.49 1.0 1.1 1 • • 16IR 12 UN 9.52 12.0 0.13 16.49 1.0 1.1 1 • • • • 16IRB 12 UN (1) 9.52 12.0 0.13 16.49 1.0 1.1 1 • 16IRM 12 UN (1) 9.52 12.0 0.12 16.49 1.1 1.4 1 • • • • 16IR 11.5 UN 9.52 11.5 0.14 16.49 1.0 1.1 1 • 16IR 11 UN 9.52 11.0 0.14 16.49 1.0 1.1 1 • 16IR/L 10 UN 9.52 10.0 0.15 16.49 1.1 1.5 1 • • 16IRB 10 UN (1) 9.52 10.0 0.15 16.49 1.1 1.5 1 • 16IR 9 UN 9.52 9.0 0.17 16.49 1.2 1.7 1 • 16IL 8 UN 9.52 8.0 0.23 16.49 1.1 1.5 1 • • • 16IR 8 UN 9.52 8.0 0.23 16.49 1.1 1.5 1 • • • • 16IRB 8 UN (1) 9.52 8.0 0.23 16.49 1.1 1.5 1 • 16IRM 8 UN (1) 9.52 8.0 0.20 16.49 1.1 1.5 1 • • • • 22IR 16 UN 3M (2) 12.70 16.0 0.07 22.00 2.5 4.0 3 • 22IR 12 UN 2M (2) 12.70 12.0 0.09 22.00 2.3 3.4 2 • 22IR 12 UN 3M (2) 12.70 12.0 0.13 22.00 3.2 5.2 3 • 22IL 7 UN 12.70 7.0 0.22 22.00 1.6 2.3 1 • 22IR 7 UN 12.70 7.0 0.22 22.00 1.6 2.3 1 • • • 22IR 6 UN 12.70 6.0 0.26 22.00 1.6 2.3 1 • • 22IR 5 UN 12.70 5.0 0.32 22.00 1.6 2.3 1 • • 22UIRL 4.5 UN 12.70 4.5 0.36 22.00 2.4 11.0 1 • 27IR 8 UN 2M (2) 15.88 8.0 0.19 27.50 3.1 4.9 2 • 27IR 4.5 UN 15.88 4.5 0.36 27.50 1.7 2.4 1 • • 27IR 4 UN 15.88 4.0 0.41 27.50 1.8 2.5 1 • • • For Insert Identification System, see pages 638-639 • Tolerance: class 2B,ANSI B1, 3M-1986. • For technical information and detailed cutting data, see pages 711-727 (1) With pressed chipformer (2) Multi-tooth (3) With pressed chipformer. (4) Threads per inch (5) Number of teeth per corner For tools, see pages: AVC-D-SIR/L (707) • MGSIR/L (118) • PICIN-MGSIR/L (386) • SIR/L (703) 663