THREADING IC250 IC908IC908IC908 INSL S AMERICAN STANDARDBUTTRESS THREADING 3˚ 45˚ FLTB-A PDX BW Double-Ended, Precision, Flat Top 7˚ RE Right-hand shown Threading Inserts for 7° Lead TP NUT45° Dimensions 7° SCREW Designation TPIN(1) TPIX(2) RE PDX BW S INSL FLTB-4R/LA 4.00 6.00 0.20 5.20 6.48 11.51 28.45 • FLTB-3R/LA 8.00 16.00 0.13 4.20 4.95 8.74 22.60 • FLTB-2R/LA 16.00 20.00 0.05 3.20 3.81 5.56 12.95 • • DMIN according to related boring bar (1) TPI min. (2) TPI max. For tools, see pages: FLASR/L (708) • FLSR/L (708) INSL S AMERICAN STANDARD PDX 7˚ BUTTRESS THREADING BW FLTB-B RE 3˚ Double-Ended, Precision, Flat Top 45˚ Left-hand shown Threading Inserts for 45° Lead TP NUT45° Dimensions 7° SCREW Designation TPIN(1) TPIX(2) RE PDX BW S INSL FLTB-4R/LB 4.00 6.00 0.20 0.40 6.48 11.51 28.45 • FLTB-3R/LB 8.00 16.00 0.13 0.30 4.95 8.74 22.60 • FLTB-2R/LB 16.00 20.00 0.05 0.30 3.81 5.56 12.95 • • DMIN according to related boring bar (1) TPI min. (2) TPI max. For tools, see pages: FLASR/L (708) • FLSR/L (708) API RD (API ROUND) PDY PDX PDY PDX ER/L-API RD RE RE External API - Oil Thread Round IC Profile Laydown Threading Inserts INSL INSL IC External right-hand shown 30° 30° NUT Dimensions Tough 1  Hard IPF TAPER 1:16 90° SCREW Designation IC TPI(2) RE INSL IPF PDY PDX CICT(3) 16ER 10 API RD 9.52 10.0 0.36 16.49 0.75 1.2 1.5 1 • • 16EL 8 API RD 9.52 8.0 0.43 16.49 0.75 1.3 1.6 1 • 16ER 8 API RD 9.52 8.0 0.43 16.49 0.75 1.3 1.6 1 • • 22ER 10 API RD 2M (1) 12.70 10.0 0.36 22.00 0.75 2.4 3.7 2 • 27ER 8 API RD 2M (1) 15.88 8.0 0.43 27.50 0.75 3.0 4.5 2 • • For Insert Identification System, see pages 638-639 • API Spec 5B8-1996. • For technical information and detailed cutting data, see pages 711-727 • For recommended number of passes for multi-tooth inserts, see page (1) Multi-tooth (2) Threads per inch (3) Number of teeth per corner For tools, see pages: C#-SER/L (701) • SER-D (702) • SER/L (700) 688 ISCAR