MacDon A40D - Metric Bolt Specifications

262334 235 Revision A
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.
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Figure 7.5: Bolt Grades
Table 7.5 Metric Class 8.8 Bolts and Class 9 Free Spinning Nut
Nominal
Size (A)
Torque (Nm) Torque (lbf·ft) (*lbf·in)
Min.
Max.
Min.
Max.
3-0.5
1.4
1.6
*13 *14
3.5-0.6 2.2 2.5
*20 *22
4-0.7 3.3 3.7
*29 *32
5-0.8 6.7
7.4
*59 *66
6-1.0
11.4
12.6
*101 *112
8-1.25 28 30 20 23
10-1.5
55
60 40
45
12-1.75 95 105 70 78
14-2.0 152 168 113 124
16-2.0 236 261
175
193
20-2.5 460 509 341 377
24-3.0 796 879 589 651
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Figure 7.6: Bolt Grades
Table 7.6 Metric Class 8.8 Bolts and Class 9 Distorted
Thread Nut
Nominal
Size (A)
Torque (Nm) Torque (lbf·ft) (*lbf·in)
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
REFERENCE