TM 10-3930-669-34 D-5.  U.S.  STANDARD TORQUE VALUES. Table D-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 lb-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 lb-ft 41 N•m 45 lb-ft 61 N•m 3/8-24 22 lb-ft 30 N•m 35 lb-ft 47 N•m 50 lb-ft 68 N•m 7/16-14 30 Ib-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 lb-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 lb-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 Ib-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 D-4

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