MacDon M155 Unloading And Assembly Instructions page 254

Table 6.2 SAE Grade 5 Bolt and Grade F Distorted
Thread Nut
Torque (Nm)
Nominal
Size (A)
Min.
1/4-20 8.1
5/16-18 16.7
3/8-16 30
7/16-14 48
1/2-13 73
9/16-12 105
5/8-11 144
3/4-10 259
7/8-9 413
1-8 619
Table 6.3 SAE Grade 8 Bolt and Grade G Distorted
Thread Nut
Torque (Nm)
Nominal
Size (A)
Min.
1/4-20 16.8
5/16-18 24
3/8-16 42
7/16-14 67
102
1/2-13
9/16-12 148
204
5/8-11
3/4-10 362
583
7/8-9
1-8 874
214298
REFERENCE
Torque (lbf·ft)
(*lbf·in)
Max. Min.
9 *72
18.5 *149
33 22
53 35
80 54
77
116
160 107
286 192
456 306
684 459
Torque (lbf·ft)
(*lbf·in)
Max. Min.
18.6 *150
26 18
46 31
74 50
113 76
163 109
225 151
400 268
644 432
966 647
Max.
*80
*164
24
39
59
86
Figure 6.2: Bolt Grades
118
A - Nominal Size
C - SAE-5
212
338
507
Max.
*165
19
34
55
84
121
Figure 6.3: Bolt Grades
167
A - Nominal Size
C - SAE-5
296
477
716
242
B - SAE-8
D - SAE-2
B - SAE-8
D - SAE-2
Revision A