TM 10-3930-669-34 D-6.  METRIC TORQUE VALUES. ½ Table D-3.  Metric Torque Values Minimum Breakaway Minimum Breakaway Minimum Breakaway Torque Value Torque Value Torque Value Grade 8.8 Grade R10 Grade 12 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 lb-ft 7 N•m 7 lb-ft 9 N•m 9 Ib-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 lb-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 Ib-ft 75 N•m 66 lb-ft 89 N•m 12 mm 66 lb-ft 89 N•m 93 lb-ft 126 N•m 111 lb-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 '28 Ib-ft 363 N•m 321 Ib-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 45 1 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 D-5/(D-6 blank)