Y ER/L-UNJ X External UNJ Profile Laydown Threading Inserts for the Aviation l and Aerospace Industry di External right-hand shown NUT Dimensions Tough 1  Hard 5/16 P 60° THREADING Rmax 0.18042P Rmin 0.15011P SCREW Designation di TPI l R X Y IC50M IC250 IC08 IC508 IC908 IC806 IC1007 11ER 28 UNJ 6.35 28.0 11.00 0.14 0.6 0.6 • 11ER 24 UNJ 6.35 24.0 11.00 0.16 0.7 0.8 • 11ER/L 20 UNJ 6.35 20.0 11.00 0.19 0.8 0.9 • 11EL 18 UNJ 6.35 18.0 11.00 0.21 0.8 1.0 • 16ER 48 UNJ 9.52 48.0 16.00 0.08 0.6 0.6 • 16ER 44 UNJ 9.52 44.0 16.00 0.09 0.6 0.6 • 16ER 40 UNJ 9.52 40.0 16.00 0.10 0.6 0.6 • 16ER 36 UNJ 9.52 36.0 16.00 0.11 0.6 0.6 • 16ER 32 UNJ 9.52 32.0 16.00 0.12 0.6 0.6 • • • 16ER 28 UNJ 9.52 28.0 16.00 0.14 0.6 0.6 • • • • 16ER/L 24 UNJ 9.52 24.0 16.00 0.16 0.7 0.8 • • • • 16ER/L 20 UNJ 9.52 20.0 16.00 0.19 0.8 0.9 • • • • • • 16ER/L 18 UNJ 9.52 18.0 16.00 0.21 0.8 1.0 • • • • • • 16ER/L 16 UNJ 9.52 16.0 16.00 0.24 0.8 1.0 • • • • 16ER/L 14 UNJ 9.52 14.0 16.00 0.27 1.0 1.2 • • • • 16ER 13 UNJ 9.52 13.0 16.00 0.29 1.1 1.3 • 16ER/L 12 UNJ 9.52 12.0 16.00 0.32 1.1 1.4 • • • • 16ER 11 UNJ 9.52 11.0 16.00 0.32 1.1 1.5 • 16ER 10 UNJ 9.52 10.0 16.00 0.38 1.1 1.5 • • 16ER/L 8 UNJ 9.52 8.0 16.00 0.48 1.2 1.6 • • • • For Insert Identification System, see page 489 • UNJ MIL-S-8879C 9-1992 Class 3A • For technical information and detailed cutting data, see pages 536-546 For tools, see pages: C#-SER/L (530) • SER-D (530) • SER/L (529) Y R IR/L-UNJ X Internal Thread Profile Inserts for the l Aircraft and Aerospace Industry di Internal left-hand shown NUT Dimensions Tough 1  Hard 5/16 P 60° Rmax 0.18042P Rmin 0.15011P SCREW Designation di TPI l R X Y IC228 IC50M IC250 IC908 IC806 08IR 20 UNJ 4.76 20.0 8.00 0.06 0.8 0.9 • 08IR 18 UNJ 4.76 18.0 8.00 0.07 0.8 1.0 • 11IR 32 UNJ 6.35 32.0 11.00 0.04 0.6 0.6 • 11IRB 32 UNJ 6.35 32.0 11.00 0.04 0.6 0.6 • 11IR 28 UNJ 6.35 28.0 11.00 0.04 0.6 0.6 • 11IRB 28 UNJ 6.35 28.0 11.00 0.04 0.6 0.6 • 11IR 24 UNJ 6.35 24.0 11.00 0.05 0.7 0.8 • 11IRB 24 UNJ 6.35 24.0 11.00 0.05 0.6 0.6 • 11IR 20 UNJ 6.35 20.0 11.00 0.06 0.8 0.9 • 11IRB 20 UNJ 6.35 20.0 11.00 0.06 0.8 0.9 • 11IR 18 UNJ 6.35 18.0 11.00 0.07 0.8 1.0 • • 11IRB 18 UNJ 6.35 18.0 11.00 0.07 0.8 0.9 • 11IR 16 UNJ 6.35 16.0 11.00 0.09 0.8 1.0 • 11IRB 16 UNJ 6.35 16.0 11.00 0.09 0.8 0.9 • 11IRB 14 UNJ 6.35 14.0 11.00 0.10 0.8 0.9 • 16IR 28 UNJ 9.52 28.0 16.00 0.04 0.6 0.6 • 16IR 24 UNJ 9.52 24.0 16.00 0.05 0.7 0.8 • 16IR 20 UNJ 9.52 20.0 16.00 0.06 0.8 0.9 • 16IR 18 UNJ 9.52 18.0 16.00 0.07 0.8 1.0 • 16IR/L 16 UNJ 9.52 16.0 16.00 0.09 0.8 1.0 • • • • 16IR 14 UNJ 9.52 14.0 16.00 0.10 1.0 1.2 • • 16IR/L 12 UNJ 9.52 12.0 16.00 0.12 1.1 1.4 • • • • 16IR/L 8 UNJ 9.52 8.0 16.00 0.19 1.2 1.6 • • For Insert Identification System, see page 489 • For technical information and detailed cutting data, see pages 536-546 For tools, see pages: SIR/L (531) 516 ISCAR