39
7.2 BOLTTORQUE
CHRECKING BOLTTORQUE
The tables show below give correct torque values for various bolts and capscrews. Tighten all bolts to 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.
Bolt
Dia.
“A”
Bolt torque*
SAE 2
Nm Ft-Lbs
SAE 5
Nm Ft-Lbs
SAE 8
Nm Ft-Lbs
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
115
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
SAE-2 SAE-5 SAE-8
Torque figures indicate 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%.
WHEEL LUG NUT TORQUE:
Use the tightening pattern shown below, to ensure the even tightening of the lug nuts on each wheel.
Bolt
Dia.
“A”
Bolt torque*
8.8
Nm Ft-Lbs
10.9
Nm Ft-Lbs
M4
3
2.2
4.5
3.3
M5
6
4
9
7
M6
10
7
15
11
M8
25
18
35
26
M10 50
37
70
52
M12 90
66
125
92
M14 140
103
200
148
M16 225
166
310
229
M20 435
321
610
450
M24 750
553
1050
774
10.9
