Table of Contents
Advertisement
7.2 BOLT TORQUE
CHECKING BOLT TORQUE
The tables shown below give correct torque values for various bolts and capscrews. Tighten all bolts to the
torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using bolt torque
chart as a guide. Replace hardware with the same strength bolt.
ENGLISH TORQUE SPECIFICATIONS
Bolt
Diameter
SAE 2
"A"
(N.m) (lb-ft)
1/4"
8
5/16"
13
3/8"
27
7/16"
41
1/2"
61
9/16"
95
5/8"
128
3/4"
225
7/8"
230
1"
345
METRIC TORQUE SPECIFICATIONS
Bolt
Diameter
8.8
"A"
(N.m)
M3
.5
M4
3
M5
6
M6
10
M8
25
M10
50
M12
90
M14
140
M16
225
M20
435
M24
750
M30
1495
M36
2600
Torque figures indicated above are valid for non-greased or non-oiled threads and heads 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%.
* Torque value for bolts and capscrews are identified by their head markings.
Bolt Torque
SAE 5
(N.m) (lb-ft)
6
12
9
10
25
19
20
45
33
30
72
53
45
110
80
60
155
115
95
215
160
165
390
290
170
570
420
225
850
630
Bolt Torque
10.9
(lb-ft)
(N.m)
(lb-ft)
.4
1.8
2.2
4.5
4
9
7
15
18
35
37
70
66
125
103
200
166
310
321
610
553
1050
1103
2100
1917
3675
SAE 8
(N.m) (lb-ft)
17
12
36
27
63
45
100
75
155
115
220
165
305
220
540
400
880
650
1320
970
1.3
3.3
7
11
26
52
92
148
229
450
774
1550
2710
51
Advertisement
Table of Contents
