
Y Y ER/L-ACME External ACME Profile Laydown X X l Threading Inserts for Feed Screws l di di External right-hand shown NUT Dimensions Tough 1 Hard 29° THREADING SCREW Designation di TPI l X Y IC228 IC50M IC250 IC908 11ER 16 ACME 6.35 16.0 11.00 0.9 1.0 • 16ER/L 16 ACME 9.52 16.0 16.00 0.9 1.0 • • 16ER/L 14 ACME 9.52 14.0 16.00 1.0 1.2 • 16ER/L 12 ACME 9.52 12.0 16.00 1.1 1.2 • • • 16ER/L 10 ACME 9.52 10.0 16.00 1.3 1.3 • • • 16ER/L 8 ACME 9.52 8.0 16.00 1.5 1.5 • • • 22ER/L 6 ACME 12.70 6.0 22.00 1.8 2.1 • • • 22ER/L 5 ACME 12.70 5.0 22.00 2.0 2.3 • • 22ER/L 4 ACME 12.70 4.0 22.00 2.1 2.2 • 22UERL 4 ACME 12.70 4.0 22.00 2.3 11.0 • • 27ER/L 4 ACME 15.88 4.0 27.00 2.3 2.7 • • • • 27UERL 3 ACME 15.88 3.0 27.00 2.8 13.7 • • • For Insert Identification System, see page 489 • ACME ASME/ANSI B1.5-1988 Class 3G • 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 Y IR/L-ACME Internal ACME Profile Laydown X X l Threading Inserts for Feed Screws l di di Internal left-hand shown NUT Dimensions Tough 1 Hard 29° SCREW Designation di TPI l X Y IC228 IC50M IC250 IC08 IC508 IC908 16IR/L 16 ACME 9.52 16.0 16.00 0.9 1.0 • • 16IR/L 14 ACME 9.52 14.0 16.00 1.0 1.2 • 16IR/L 12 ACME 9.52 12.0 16.00 1.1 1.2 • • • 16IR/L 10 ACME 9.52 10.0 16.00 1.3 1.3 • • 16IR/L 8 ACME 9.52 8.0 16.00 1.5 1.5 • • • • 22IR/L 6 ACME 12.70 6.0 22.00 1.8 2.1 • • • 22IR/L 5 ACME 12.70 5.0 22.00 2.0 2.3 • • • • 22IR 4 ACME 12.70 4.0 22.00 2.1 2.2 • 22UIRL 4 ACME 12.70 4.0 22.00 2.3 11.0 • • 27IR/L 4 ACME 15.88 4.0 27.00 2.3 2.7 • • • • 27UIRL 3 ACME 15.88 3.0 27.00 2.8 13.7 • • • • For Insert Identification System, see page 489 • ACME ASME/ANSI B1.5-1988 Class 3G. • For technical information and detailed cutting data, see pages 536-546 For tools, see pages: SIR/L (531) 515