STANDARD BOLT TORQUE SPECIFICATIONS SPECIFIED TORQUE FOR STANDARD BOLTS Class | Diameter mm | Pitch mm | Specified torque | Hexagon head bolt | Hexagon flange bolt | kg-cm | ft-lb | N-m | kg-cm | ft-lb | N-m 4T | 6 | 1 | 55 | 48 in.-lb | 5 | 60 | 52 in.-lb | 6 | 8 | 1.25 | 130 | 9 | 12.5| 145 | 10 | 14 | 10 | 1.25 | 260 | 19 | 26 | 290 | 21 | 29 | 12 | 1.25 | 480 | 35 | 47 | 540 | 39 | 53 | 14 | 1.5 | 760 | 55 | 74 | 850 | 61 | 84 | 16 | 1.5 | 1,150 | 83 | 115 | — | — | — 5T | 6 | 1 | 65 | 56 in.-lb | 6.5 | 75 | 65 in.-lb | 7.5 | 8 | 1.25 | 160 | 12 | 15.5| 175 | 13 | 17.5 | 10 | 1.25 | 330 | 24 | 32 | 360 | 26 | 36 | 12 | 1.25 | 600 | 43 | 59 | 670 | 48 | 65 | 14 | 1.5 | 930 | 67 | 91 | 1,050 | 76 | 100 | 16 | 1.5 | 1,400 | 101 | 140 | — | — | — 6T | 6 | 1 | 80 | 69 in.-lb | 8 | 90 | 78 in.-lb | 9 | 8 | 1.25 | 195 | 14 | 19 | 210 | 15 | 21 | 10 | 1.25 | 400 | 29 | 39 | 440 | 32 | 44 | 12 | 1.25 | 730 | 53 | 71 | 810 | 59 | 80 | 14 | 1.5 | 1,100 | 80 | 110 | 1,250 | 90 | 125 | 16 | 1.5 | 1,750 | 127 | 170 | — | — | — 7T | 6 | 1 | 110 | 8 | 10.5| 120 | 9 | 12 | 8 | 1.25 | 260 | 19 | 25 | 280 | 21 | 28 | 10 | 1.25 | 530 | 38 | 52 | 590 | 43 | 58 | 12 | 1.25 | 970 | 70 | 95 | 1,050 | 76 | 105 | 14 | 1.5 | 1,500 | 108 | 145 | 1,700 | 123 | 165 | 16 | 1.5 | 2,300 | 166 | 230 | — | — | — 8T | 8 | 1.25 | 300 | 22 | 29 | 330 | 24 | 33 | 10 | 1.25 | 620 | 45 | 61 | 690 | 50 | 68 | 12 | 1.25 | 1,100 | 80 | 110 | 1,250 | 90 | 120 9T | 8 | 1.25 | 340 | 25 | 34 | 380 | 27 | 37 | 10 | 1.25 | 710 | 51 | 70 | 790 | 57 | 78 | 12 | 1.25 | 1,300 | 94 | 125 | 1,450 | 105 | 140 10T | 8 | 1.25 | 390 | 28 | 38 | 430 | 31 | 42 | 10 | 1.25 | 800 | 58 | 78 | 890 | 64 | 88 | 12 | 1.25 | 1,450 | 105 | 140 | 1,600 | 116 | 155 11T | 8 | 1.25 | 430 | 31 | 42 | 480 | 35 | 47 | 10 | 1.25 | 890 | 64 | 87 | 990 | 72 | 97 | 12 | 1.25 | 1,600 | 116 | 155 | 1,800 | 130 | 175