MacDon M Series - Metric Bolt Specifications

REFERENCE
Table 6.4 SAE Grade 8 Bolt and Grade 8 Free
Spinning Nut
Torque (N·m)
To rque (ft·lb
f)
(*in·lbf)
Nominal
Size (A)
Min. Max. Min. Max.
1/4-20
16.8 18.6
*150 *165
5/16-18
35 38 26 28
3/8-16
61 68 46 50
7/16-14
98 109 73 81
1/2-13
150 166 111 123
9/16-12
217 239 160 177
5/8-11
299 330 221 345
3/4-10
531 587 393 435
7/8-9
855 945 633 700
1-8 1165 1288 863 954
Figure 6.4: Bolt Grades
A-NominalSize B-SAE-8
C - SAE-5 D - SAE-2
6.1.2 Metric Bolt Specifications
Table6.5MetricClass8.8BoltsandClass9Free
Spinning Nut
Torque (N·m)
To rque (ft·lbf)
(*in·lbf)
Nominal
Size (A)
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
Figure 6.5:
Bolt Grades
147962 359 Revision A