TM 10-3930-669-20 E-6.  METRIC TORQUE VALUES. Table E-3.  Metric 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 4 mm 3 lb-ft 4 N·m 4 lb-ft 5 N·m 5 lb-ft 7 N·m 5 mm 5 Ib-ft 7 N·m 7 lb-ft 9 N·m 9 lb-ft 12 N·m 6 mm 9 lb-ft 12 N·m 13 lb-ft 18 N·m 15 lb-ft 20 N·m 7 mm 15 Ib-ft 20 N·m 21 lb-ft 28 N·m 25 lb-ft 34 N·m 8 mm 22 lb-ft 30 N·m 31 lb-ft 42 N·m 37 lb-ft 50 N·m 9 mm 28 lb-ft 38 N·m 40 lb-ft 54 N·m 47 lb-ft 64 N·m 10 mm 39 lb-ft 53 N·m 55 lb-ft 75 N·m 66 lb-ft 89 N·m 12 mm 66 lb-ft 89 N·m 93 Ib-ft 126 N·m 111 Ib-ft 150 N·m 14 mm 100 lb-ft 136 N·m 140 lb-ft 190 N·m 169 lb-ft 229 N·m 16 mm 152 lb-ft 206 N·m 214 lb-ft 290 N·m 256 lb-ft 347 N·m 18 mm 190 lb-ft 258 N·m 268 lb-ft 363 N·m 321 lb-ft 435 N·m 20 mm 265 lb-ft 359 N·m 372 lb-ft 504 N·m 447 lb-ft 606 N·m 22 mm 321 lb-ft 435 N·m 451 lb-ft 611 N·m 542 lb-ft 735 N·m 24 mm 412 lb-ft 559 N·m 578 lb-ft 784 N·m 695 lb-ft 942 N·m E-5/(E-6 blank)