Sae Bolt Torque Specifications - MacDon R113 Operator's Manual

SAE Bolt Torque Specifications
Torque values shown in the following tables are valid for non-greased, or non-oiled threads and heads; therefore,
do NOT grease or oil bolts or cap screws unless otherwise specified in this manual.
Table 4.2 SAE Grade 5 Bolt and Grade 5 Free
Spinning Nut
Torque (ft·lbf)
Nominal
(*in·lbf)
Size (A)
Min.
1/4-20 *106
5/16-18 *218
3/8-16 32
7/16-14 52
1/2-13 79
9/16-12 114
5/8-11 157
281
3/4-10
449
7/8-9
1-8 611
169820
MAINTENANCE AND SERVICING
Torque (N·m)
Max. Min. Max.
*117 11.9 13.2
24.6 27.1
*241
36 44
57 70
87 106
126 153
173 212
311 380
496 606
676 825
48
77
118
170
Figure 4.6: Bolt Grades
234
A - Nominal Size
C - SAE-5
420
669
912
107
B - SAE-8
D - SAE-2
Revision A