MacDon M1240, Operator'S Manual

Page: 390 / 488

REFERENCE
Table 8.2 Metric Class 8.8 Bolts and Class 9 Distorted
Thread Nut
Torque (N·m)
Torque (ft·lbf)
(*in·lbf)
Nominal
Size (A)
Min. Max. Min. Max.
3-0.5 1 1.1 *9 *10
3.5-0.6 1.5 1.7 *14 *15
4-0.7 2.3 2.5 *20 *22
5-0.8 4.5 5 *40 *45
6-1.0 7.7 8.6 *69 *76
8-1.25 18.8 20.8 *167 *185
10-1.5 37 41 28 30
12-1.75 65 72 48 53
14-2.0 104 115 77 85
16-2.0 161 178 119 132
20-2.5 314 347 233 257
24-3.0 543 600 402 444
Figure 8.2: Bolt Grades
Table 8.3 Metric Class 10.9 Bolts and Class 10 Free
Spinning Nut
Torque (N·m)
Torque (ft·lbf)
(*in·lbf)
Nominal
Size (A)
Min. Max. Min. Max.
3-0.5 1.8 2
*18 *19
3.5-0.6 2.8 3.1 *27 *30
4-0.7 4.2 4.6 *41 *45
5-0.8 8.4 9.3 *82 *91
6-1.0 14.3 15.8 *140 *154
8-1.25 38 42 28 31
10-1.5 75 83 56 62
12-1.75 132 145 97 108
14-2.0 210 232 156 172
16-2.0 326 360 242 267
20-2.5 637 704 472 521
24-3.0 1101 1217 815 901
Figure 8.3: Bolt Grades
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Revision A