W
ESTFIELD
- G
RAIN
A
UGERS
8. A
PPENDIX
WR 60/80/100 X 26’ - 71’ EMD M
ODEL
8.1. B
OLT
T
ORQUE
V
ALUES
30255 R3
61
8. Appendix
8.1. Bolt Torque Values
Tables 8.1 and 8.2 give correct torque values for various bolts and capscrews. The bolt
diameter is measured to the outside of the threads. When tightening all bolts, tighten the
nut on the bolt to the torque specified in the tables, unless otherwise specified. Do not
replace or substitute bolts, nuts, or other hardware that is of lesser strength than the
hardware supplied by the manufacturer.
Torque values indicated below are valid for non-greased or non-oiled threads and head,
unless otherwise specified. Therefore, do not grease or oil bolts or capscrews unless
otherwise specified in this manual. When using locking elements, increase torque values
by 5%.
Table 8.1 SAE Bolt Torque
Bolt
Diameter
(N·m)
(ft·lb)
(N·m)
(ft·lb)
(N·m)
(ft·lb)
1/4"
8
6
12
9
17
12
5/16"
13
10
25
19
36
27
3/8"
27
20
45
33
63
45
7/16"
41
30
72
53
100
75
1/2"
61
45
110
80
155
115
9/16"
95
60
155
115
220
165
5/8"
128
95
215
160
305
220
3/4"
225
165
390
290
540
400
7/8"
230
170
570
420
880
650
1"
345
225
850
630
1320
970