SPECIFICATIONS  STANDARD BOLT  SPECIFIED TORQUE FOR STANDARD BOLTS  


Class Diameter
(mm)
Pitch
(mm)
Specified torque
Hexagon head bolt Hexagon flange bolt
N*m kgf*cm ft.*lbf N*m kgf*cm ft.*lbf
4T 6 1 5 55 48 in.*lbf 6 60 52 in.*lbf
8 1.25 12.5 130 9 14 145 10
10 1.25 26 260 19 29 290 21
12 1.25 47 480 35 53 540 39
14 1.5 74 760 55 84 850 61
16 1.5 115 1150 83 - - -
5T 6 1 6.5 65 56 in.*lbf 7.5 75 65 in.*lbf
8 1.25 15.5 160 12 17.5 175 13
10 1.25 32 330 24 36 360 26
12 1.25 59 600 43 65 670 48
14 1.5 91 930 67 100 1050 76
16 1.5 140 1400 101 - - -
6T 6 1 8 80 69 in.*lbf 9 90 78 in.*lbf
8 1.25 19 195 14 21 210 15
10 1.25 39 400 29 44 440 32
12 1.25 71 730 53 80 810 59
14 1.5 110 1100 80 125 1250 90
16 1.5 170 1750 127 - - -
7T 6 1 10.5 110 8 12 120 9
8 1.25 25 260 19 28 290 21
10 1.25 52 530 38 58 590 43
12 1.25 95 970 70 105 1050 76
14 1.5 145 1500 108 165 1700 123
16 1.5 230 2300 166 - - -
8T 8 1.25 29 300 22 33 330 24
10 1.25 61 620 45 68 690 50
12 1.25 110 1100 80 120 1250 90
9T 8 1.25 34 340 25 37 380 27
10 1.25 70 710 51 78 790 57
12 1.25 125 1300 94 140 1450 105
10T 8 1.25 38 390 28 42 430 31
10 1.25 78 800 58 88 890 64
12 1.25 140 1450 105 155 1600 116
11T 8 1.25 42 430 31 47 480 35
10 1.25 87 890 64 97 990 72
12 1.25 155 1600 116 175 1800 130