SECTION 1 – GENERAL INFORMATION
1-2
METRIC BOLT TORQUE SPECIFICATION
Bolt Size Grade No.
Coarse Thread Fine Thread
Pitch (mm) Pounds-Feet Newton Meters Pitch (mm) Pounds-Feet Newton-Meters
M6
4T
1.0
3.6 – 5.1 4.9 – 6.9
– – – 7T 6.1 – 8.3 8.3 – 11.3
10T 8.7 – 11.6 11.8 – 15.7
M8
4T
1.25
9.4 – 12.3 12.7 – 16.7
1.0
11.2 – 14.8 15.2 – 20.1
7T 16.6 – 21.0 22.6 – 28.4 19.5 – 25.3 26.5 – 34.3
10T 21.0 – 26.8 28.4 – 36.3 22.4 – 29.7 30.4 – 40.2
M10
4T
1.5
18.8 – 24.6 25.5 – 33.3
1.25
21.0 – 26.8 28.4 – 36.3
7T 32.5 – 41.2 44.1 – 55.9 36.2 – 46.3 49.0 – 62.8
10T 39.8 – 51.4 53.9 – 69.6 42.7 – 54.2 57.9 – 73.5
M12
4T
1.75
27.5 – 34.7 37.3 – 47.1
1.25
31.8 – 40.5 43.1 – 54.9
7T 48.5 – 61.5 65.7 – 83.4 55.0 – 69.4 74.5 – 94.1
10T 68.0 – 85.4 92.2 – 116 73.1 – 93.3 99.0 – 127
M14
4T
2.0
46.3 – 59.3 62.8 – 80.4
1.5
51.4 – 64.4 69.6 – 87.3
7T 76.7 – 96.9 104 – 131 86.1 – 109 117 – 148
11T 102 – 129 139 – 175 108 – 137 147 – 186
M16
4T
2.0
63.6 – 81.0 86.3 – 110
1.5
67.3 – 84.6 91.2 – 115
7T 110 – 136 149 – 184 116 – 142 157 – 192
11T 152 – 188 206 – 255 163 – 199 221 – 270
M18
4T
2.0
83.9 – 104 114 – 141
1.5
96.9 – 120 131 – 163
7T 145 – 174 196 – 235 170 – 206 230 – 279
11T 203 – 246 275 – 333 221 – 271 299 – 368
M20
4T
2.5
106 – 132 144 – 179
1.5
127 – 156 172 – 211
7T 177 – 213 240 – 289 203 – 246 275 – 333
11T 268 – 325 363 – 441 293 – 358 397 – 485