Metric Bolt Specifications - MacDon M Series Unloading And Assembly Instructions

Table 6.4 SAE Grade 8 Bolt and Grade 8 Free
Spinning Nut
Torque (N·m)
Nominal
Size (A)
Min.
1/4-20 16.8
5/16-18 35
3/8-16 61
7/16-14 98
1/2-13 150
9/16-12 217
5/8-11 299
3/4-10 531
7/8-9 855
1-8 1165
6.1.2 Metric Bolt Specifications
Table 6.5 Metric Class 8.8 Bolts and Class 9 Free
Spinning Nut
Torque (N·m)
Nominal
Size (A)
Min.
3-0.5 1.4
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
147962
REFERENCE
Torque (ft·lbf)
(*in·lbf)
Max. Min. Max.
18.6 *150 *165
38 26
68 46
109 73
166 111 123
239 160 177
330 221 345
587 393 435
945 633 700
1288 863 954
Torque (ft·lbf)
(*in·lbf)
Max. Min. Max.
1.6 *13 *14
2.5 *20 *22
3.7 *29 *32
7.4
*59 *66
12.6 *101 *112
30 20
60 40
105 70
168 113 124
261 175 193
509 341 377
879 589 651
28
50
81
Figure 6.4: Bolt Grades
A - Nominal Size
C - SAE-5
23
Figure 6.5: Bolt Grades
45
78
359
B - SAE-8
D - SAE-2
Revision A