Y Y ER/L-API RD X di External API - Oil Thread Round X Profile Laydown Threading Inserts l l di External right-hand shown 30° 30° NUT Dimensions Tough 1  Hard IPF TAPER 1:16 90° THREADING SCREW Designation di TPI l IPF X Y Z (2) IC50M IC250 IC508 IC908 16ER 10 API RD 9.52 10.0 16.00 0.75 1.5 1.4 1 • • • 16ER/L 8 API RD 9.52 8.0 16.00 0.75 1.3 1.6 1 • • • • 22ER 10 API RD 2M (1) 12.70 10.0 22.00 0.75 2.4 3.7 2 • 27ER 10 API RD 3M (1) 15.88 10.0 27.00 0.75 3.8 6.2 3 • 27ER 8 API RD 2M (1) 15.88 8.0 27.00 0.75 3.0 4.5 2 • • For Insert Identification System, see page 489 • API Spec 5B8-1996. • For technical information and detailed cutting data, see pages 536-546 • For recommended number of passes for multi-tooth inserts, see page 544 (1) Multi-tooth (2) Number of teeth per corner. For tools, see pages: C#-SER/L (530) • SER-D (530) • SER/L (529) Y Y IR/L-API RD X Internal API - Oil Thread Round di X Profile Laydown Threading Inserts l l di Internal left-hand shown 30° 30° NUT Dimensions Tough 1  Hard IPF TAPER 1:16 90° SCREW Designation di TPI l IPF X Y Z (2) IC228 IC50M IC250 IC908 16IR/L 10 API RD 9.52 10.0 16.00 0.75 1.5 1.4 1 • • • • 16IR/L 8 API RD 9.52 8.0 16.00 0.75 1.3 1.6 1 • • 22IR 10 API RD 2M (1) 12.70 10.0 22.00 0.75 2.4 3.7 2 • 27IR 10 API RD 3M (1) 15.88 10.0 27.00 0.75 3.8 6.2 3 • 27IR 8 API RD 2M (1) 15.88 8.0 27.00 0.75 3.0 4.5 2 • • For Insert Identification System, see page 489 • API Spec 5B8-1996. • For technical information and detailed cutting data, see pages 536-546 • For recommended number of passes for multi-tooth inserts see page 544 (1) Multi-tooth (2) Number of teeth per corner. For tools, see pages: SIR/L (531) Y ER/L-API X External API - Oil Thread Profile l Laydown Threading Inserts di External right-hand shown P NUT Tough 1  30° 30° Dimensions Hard 90° IPF SCREW Designation di TPI l IPF X Y Size (4) IC50M IC250 IC908 22ER/L 5 API 403 (1) 12.70 5.0 22.00 3 1.8 2.5 2.375"-4.5"REG • • • 27ER/L 4 API 382 (2) 15.88 4.0 27.00 2 2.1 2.8 NC23-NC50 • • 27ER 4 API 383 (2) 15.88 4.0 27.00 3 2.1 2.8 NC56-NC77 • • 27ER/L 4 API 502 (3) 15.88 4.0 27.00 2 2.0 3.0 6-5/8" REG • • • 27ER 4 API 503 (3) 15.88 4.0 27.00 3 2.0 3.0 5-1/2,7-5/8,8-5/8REG • • • • For Insert Identification System, see page 489 • For technical information and detailed cutting data, see pages 536-546 (1) V-0.040 (2) V-0.038R (3) V-0.050 (4) Connection no. or size For tools, see pages: C#-SER/L (530) • SER-D (530) • SER/L (529) 521