MacDon D65 Operator's Manual page 269

Table 8.3 SAE Grade 5 Bolt and Grade F Distorted
Thread Nut
Torque (ft·lbf)
Nominal
(*in·lbf)
Size (A)
Min.
1/4-20 *72
5/16-18 *149
3/8-16 22
7/16-14 35
1/2-13 54
77
9/16-12
5/8-11 107
3/4-10 192
7/8-9 306
1-8 459
Table 8.4 SAE Grade 8 Bolt and Grade G Distorted
Thread Nut
Torque (ft·lbf)
Nominal
(*in·lbf)
Size (A)
Min.
1/4-20 *150
5/16-18 18
3/8-16 31
50
7/16-14
1/2-13 76
9/16-12 109
5/8-11 151
3/4-10 268
7/8-9 432
1-8 647
147725
REFERENCE
Torque (N·m)
Max. Min. Max.
*80 8.1
*164 16.7 18.5
24 30
39 48
59 73
86 105 116
118 144 160
212 259 286
338 413 456
507 619 684
Torque (N·m)
Max. Min. Max.
*165 16.8 18.6
19 24
34 42
55 67
84 102 113
121 148 163
167 204 225
296 362 400
477 583 644
716 874 966
9
33
53
80
Figure 8.2: Bolt Grades
A - Nominal Size
C - SAE-5
26
46
74
Figure 8.3: Bolt Grades
A - Nominal Size
C - SAE-5
255
B - SAE-8
D - SAE-2
B - SAE-8
D - SAE-2
Revision A