MacDon M1170NT5 Operator's Manual page 420

Table 8.2 Metric Class 8.8 Bolts and Class 9 Distorted
Thread Nut
Torque (Nm)
Nominal
Size (A)
Min.
3-0.5 1
3.5-0.6 1.5
4-0.7 2.3
5-0.8 4.5
7.7
6-1.0
8-1.25 18.8
10-1.5 37
12-1.75 65
14-2.0 104
16-2.0 161
20-2.5 314
24-3.0 543
Table 8.3 Metric Class 10.9 Bolts and Class 10 Free
Spinning Nut
Torque (Nm)
Nominal
Size (A)
Min.
3-0.5 1.8
3.5-0.6 2.8
4-0.7 4.2
5-0.8 8.4
6-1.0 14.3
8-1.25 38
10-1.5 75
12-1.75 132
14-2.0 210
16-2.0 326
20-2.5 637
24-3.0 1101
215922
Torque (lbf·ft) (*lbf·in)
Max. Max.
Min.
1.1
*9
1.7
*14
2.5 *20
5
*40
8.6 *69
20.8
*167 *185
41 28
72 48
115 77
178 119
347 233
600 402
Torque (lbf·ft) (*lbf·in)
Max. Max.
Min.
2 *18
3.1
*27
4.6 *41
9.3
*82
15.8 *140 *154
42 28
83 56
145 97
232 156
360 242
704 472
1217 815
REFERENCE
*10
*15
*22
*45
*76
30
53
Figure 8.2: Bolt Grades
85
132
257
444
*19
*30
*45
*91
31
62
108
172 Figure 8.3: Bolt Grades
267
521
901
400
A
A
Revision A