MacDon D65 - Page 291

214327 271 Revision B
A
1004958
B
C
D
Figure 8.2: Bolt Grades
A - Nominal Size B - SAE-8
C - SAE-5 D - SAE-2
Table 8.3 SAE Grade 5 Bolt and Grade F Distorted Thread Nut
Nominal
Size (A)
Torque (Nm) Torque (lbf·ft) (*lbf·in)
Min.
Max.
Min.
Max.
1/4-20
8.1 9
*72 *80
5/16-18
16.7 18.5
*149 *164
3/8-16
30 33 22 24
7/16-14
48 53 35 39
1/2-13
73 80
54
59
9/16-12
105 116
77
86
5/8-11
144
160 107 118
3/4-10
259 286 192 212
7/8-9
413 456 306 338
1-8 619 684 459 507
A
1004958
B
C
D
Figure 8.3: Bolt Grades
A - Nominal Size B - SAE-8
C - SAE-5 D - SAE-2
Table 8.4 SAE Grade 8 Bolt and Grade G Distorted Thread Nut
Nominal
Size (A)
Torque (Nm) Torque (lbf·ft) (*lbf·in)
Min.
Max.
Min.
Max.
1/4-20
16.8 18.6
*150 *165
5/16-18
24 26 18 19
3/8-16
42 46 31 34
7/16-14
67
74
50
55
1/2-13
102 113 76 84
9/16-12
148 163 109 121
5/8-11
204 225 151 167
3/4-10
362 400 268 296
7/8-9
583 644 432
477
1-8 874 966 647 716
A
1004958
B
C
D
Figure 8.4: Bolt Grades
A - Nominal Size B - SAE-8
C - SAE-5 D - SAE-2
Table 8.5 SAE Grade 8 Bolt and Grade 8 Free Spinning Nut
Nominal
Size (A)
Torque (Nm) Torque (lbf·ft) (*lbf·in)
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
REFERENCE