TM 10-3930-669-20 E-5.  U.S.  STANDARD TORQUE VALUES. Table E-2.  U.S.  Standard Torque Values Minimum Breakaway Minimum Breakaway Minimum Breakaway Torque Value Torque Value Torque Value S.A.E.  Grade 2 S.A.E.  Grade 5 S.A.E.  Grade 8 Thread Size U.S. Metric U.S. Metric U.S. Metric 1/4-20 5 lb-ft 7 N·m 8 lb-ft 11 N·m 12 lb-ft 16 N·m 1/4-28 6 lb-ft 8 N·m 10 lb-ft 14 N·m 14 Ib-ft 19 N·m 5/16-18 11 lb-ft 15 N·m 17 lb-ft 23 N·m 24 lb-ft 33 N·m 5/16-24 13 lb-ft 18 N·m 19 lb-ft 26 N·m 27 lb-ft 37 N·m 3/8-16 20 lb-ft 27 N·m 30 Ib-ft 41 N·m 45 lb-ft 61 N·m 3/8-24 22 lb-ft 30 N·m 35 Ib-ft 47 N·m 50 lb-ft 68 N·m 7/16-14 30 lb-ft 41 N·m 50 lb-ft 68 N·m 70 lb-ft 95 N·m 7/16-20 35 lb-ft 47 N·m 55 lb-ft 75 N·m 80 lb-ft 108 N·m 1/2-13 50 lb-ft 68 N·m 75 lb-ft 102 N·m 105 lb-ft 142 N·m 1/2-20 55 lb-ft 75 N·m 85 lb-ft 115 N·m 120 lb-ft 163 N·m 9/16-12 70 lb-ft 95 N·m 110 lb-ft 149 N·m 155 lb-ft 210 N·m 9/16-18 80 lb-ft 108 N·m 120 lb-ft 163 N·m 170 lb-ft 230 N·m 5/8-11 100 Ib-ft 136 N·m 150 lb-ft 203 N·m 210 lb-ft 285 N·m 5/8-17 110 lb-ft 149 N·m 170 lb-ft 230 N·m 240 lb-ft 325 N·m 3/4-10 170 lb-ft 230 N·m 270 lb-ft 366 N·m 375 lb-ft 508 N·m 3/4-16 190 lb-ft 258 N·m 300 lb-ft 407 N·m 420 lb-ft 569 N·m 7/8-9 165 lb-ft 224 N·m 430 lb-ft 583 N·m 610 lb-ft 827 N·m 7/8-14 180 lb-ft 244 N·m 475 lb-ft 644 N·m 670 Ib-ft 908 N·m 1-8 250 lb-ft 339 N·m 645 lb-ft 875 N·m 910 lb-ft 1,234 N·m 1-12 270 lb-ft 366 N·m 705 lb-ft 956 N·m 1,000 lb-ft 1,356 N·m 1-14 280 lb-ft 380 N·m 720 lb-ft 976 N·m 1,015 lb-ft 1,376 N·m E-4

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