HI Thread Insert Thread Insert HI API V- 0.050 API Buttress Casing ( BUT) Pitch Dimensions Pitch Dimensions CD 0 Designation Designation Q- Designation Size Picture Q. (Right) ( Left ) ( tpi) IPF Picture ( mm) d L hmin x f d L hmin x f ER 22 - 4API 502 4 6 5 / 8 " REG 12.7 22 3.75 2.0 2.9 ER 22 - 5BUT75 EL 22- 5BUT75 5 0.75 12.7 22 1.55 3.1 1.9 22 - 5BUT 1 22 5BUT 1 - 5 12.7 22 1.55 3.1 1.9 Internal 22 - 4API 503 4 5 1 / 2 " , 7 5 / 8 " 8 5 / 8 " REG 12.7 22 3.74 2.0 2.9 03 c 27- 4API 502 4 6 5 / 8 " REG 15.875 27 3.75 2.1 3.1 0 0 X c 27- 4API 503 4 5 1 / 2 " , 7 5 / 8 " 8 5 / 8 " REG 15.875 27 3.74 2.1 3.1 LU 0 *9 ^ x EL 22 - 4API 502 4 6 5 / 8 " REG 12.7 22 3.75 2.0 2.9 Externa LU 22 - 4API 503 4 5 1 / 2 " , 7 5 / 8 " 8 5 / 8 " REG 12.7 22 3.74 2.0 2.9 IR 22- 5BUT75 IL 22- 5BUT75 5 0.75 12.7 22 1.55 2.8 1.9 = arctg ( IPF / 24 ) 27- 4API 502 4 6 5 / 8 " REG 15.875 27 3.75 2.1 3.1 x 22 - 5BUT1 22 - 5 BUT 1 5 1 12.7 22 1.55 2.8 1.9 I nternal 27- 4API 503 4 5 1 / 2 ", 7 5/ 8 " 8 5/ 8 " REG 15.875 27 3.74 2.1 3.1 CD C 0 IR 22 - 4API 502 4 6 5 / 8 " REG 12.7 22 3.75 2.1 3.1 c i 22 - 4API 503 4 5 1 / 2 " , 7 5 / 8 " 8 5 / 8 " REG 12.7 22 3.74 2.0 2.9 20 Externa 27 - 4API 502 4 6 5 / 8 " REG 15.875 27 3.75 2.1 3.1 03 c 27 - 4API 503 4 5 1 / 2 " , 7 5 / 8 " 8 5 / 8 " REG 15.875 27 3.74 2.1 3.1 0 c IL 22 -4API 502 4 6 5 / 8 " REG 12.7 22 3.75 2.1 3.1 22 - 4API 503 4 5 1 / 2 " , 7 5 / 8 " 8 5 / 8 " REG 12.7 22 3.74 2.0 2.9 27 - 4API 502 4 6 5 / 8 " REG 15.875 27 3.75 2.1 3.1 27 - 4API 503 4 5 1 / 2 " , 7 5 / 8 " 8 5 / 8 " REG 15.875 27 3.74 2.1 3.1 049 050 API V- 0.040 API Round Casing & Tubing (APIRD) Pitch Dimensions Pitch Dimensions 0 0 Q. Designation Size Picture o. Designation Designation Picture >, (mm) d L hmin x f ( Right ) ( Left ) ( tpi) d L hmin x f ER 22 - 6 API 551 6 NC 10 - NC 16 12.7 22 1.41 ER 16 - 1 OAPIRD EL 16 - 1 OAPIRD 10 9.525 16 1.41 1.2 1.4 2.6 2.0 16 - 8APIRD 16- 8APIRD 8 9.525 16 1.81 1.3 1.5 Internal CD c EL 22 - 6 API 551 6 NC 10 - NC 16 12.7 22 1.41 2.6 2.0 03 3(0 c 0 0 L X LU X LU Externa IR 22 - 6 API 551 6 NC 10 - NC 16 12.7 22 1.41 2.6 2.0 IR 16 - 1 OAPIRD IL 16 - 1 OAPIRD 10 9.525 03 IL 22 - 6 API 551 6 NC 10 -NC 16 12.7 22 1.41 2.6 2.0 16 - 8APIRD 16 - 8APIRD 8 9.525 Internal c CD 3(0 m 0 c C 0 c Externa