Y ER-EL External EL - Extreme Line Oil Thread X Profile Laydown Threading Inserts l di External right-hand shown NUT 6° 6° Dimensions Tough 1 Hard TAPER- IPF 90° THREADING SCREW Designation di TPI l IPF X Y Size (1) IC250 IC908 22ER 6 EL 1.5 12.70 6.0 22.00 1.5 1.9 1.9 5" - 7-5/8" • • 22ER 5 EL 1.25 12.70 5.0 22.00 1.25 2.4 2.3 8-5/8" - 10-3/4" • • • For Insert Identification System, see page 489 • ANSI B1.9.1973 Class 2 (1) Connection no. or size For tools, see pages: C#-SER/L (530) • SER-D (530) • SER/L (529) Y IR-EL Internal EL - Extreme Line Oil Thread X Profile Laydown Threading Inserts l di Internal left-hand shown NUT 6° 6° Dimensions Tough 1 Hard TAPER- IPF 90° SCREW Designation di TPI l IPF X Y Size (1) IC250 IC908 22IR 6 EL 1.5 12.70 6.0 22.00 1.5 1.9 1.9 5" - 7-5/8" • 22IR 5 EL 1.25 12.70 5.0 22.00 1.25 2.4 2.3 8-5/8" - 10-3/4" • • For Insert Identification System, see page 489 • ANSI B1.9.1973 Class 2. (1) Connection no. or size For tools, see pages: SIR/L (531) Y ER/L-RND External DIN 405 Round Laydown X Threading Inserts for Fire Fighting l and Food Industry Pipe Couplings di External right-hand shown R0.22105P NUT Dimensions Tough 1 Hard 30° R0.23851P SCREW Designation di TPI l X Y IC228 IC50M IC250 IC508 IC908 16ER/L 10 RND 9.52 10.0 16.00 1.1 1.2 • • • 16ER/L 8 RND 9.52 8.0 16.00 1.4 1.3 • • • 16ERM 8 RND (1) 9.52 8.0 16.00 1.4 1.3 • 16ER/L 6 RND 9.52 6.0 16.00 1.5 1.7 • • • 16ERM 6 RND (1) 9.52 6.0 16.00 1.5 1.7 • • 22ER/L 6 RND 12.70 6.0 22.00 1.5 1.7 • • • • 22ER/L 4 RND 12.70 4.0 22.00 2.2 2.3 • • • 27ER 4 RND 15.88 4.0 27.00 2.2 2.3 • • • For Insert Identification System, see page 489 • Tolerance: Class 7H. • For technical information and detailed cutting data, see pages 536-546 (1) With pressed chipformer For tools, see pages: C#-SER/L (530) • SER-D (530) • SER/L (529) 523