Metric Bolt Specifications - MacDon M155 Unloading And Assembly Instructions

8.1.2 Metric Bolt Specifications

Specifications are provided for the appropriate final torque values to secure various sizes of metric bolts.
NOTE:
The torque values provided in the following metric bolt torque tables apply to hardware installed dry; that is, hardware
with no grease, oil, or threadlocker on the threads or heads. Do NOT add grease, oil, or threadlocker to bolts or cap screws
unless you are directed to do so in this manual.
Table 8.5 Metric Class 8.8 Bolts and Class 9 Free Spinning Nut
Torque (Nm)
Nominal
Size (A)
Min.
1.4
3-0.5
3.5-0.6 2.2
4-0.7 3.3
5-0.8 6.7
6-1.0 11.4
8-1.25 28
10-1.5 55
12-1.75 95
14-2.0 152
16-2.0 236
20-2.5 460
24-3.0 796
Table 8.6 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
6-1.0 7.7
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
262320
Torque (lbf·ft) (*lbf·in)
Max. Max.
Min.
1.6 *13
2.5
*20
3.7 *29
7.4
*59
12.6
*101 *112
30 20
60 40
105 70
168 113
261 175
509 341
879 589
Torque (lbf·ft) (*lbf·in)
Max. Min. Max.
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
REFERENCE
*14
*22
*32
*66
23
45
78
124
193
Figure 8.5: Bolt Grades
377
651
*10
*15
*22
*45
*76
30
53
85
Figure 8.6: Bolt Grades
132
257
444
275
A
A
Revision A