RECOMMENDED TORQUES
Form 169007
6
Revision
D
RECOMMENDED TORQUES
A. GENERAL
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 throughout this
manual.
Check tightness of bolts periodically, using
bolt torque chart as a guide.
Replace hardware with the same strength
bolt.
Torque figures are valid for non-greased or
non-oiled threads and heads unless
otherwise specified. Do not grease or oil bolts
or capscrews unless specified in this manual.
When using locking elements, increase
torque values by 5%.
B. SAE BOLTS
BOLT
DIA. "A"
(in.)
NC BOLT TORQUE*
SAE-5 SAE-8
ft·lbf N·m ft·lbf N·m
1/4 9 12
11
15
5/16 18 24 25 34
3/8 32 43 41 56
7/16 50 68 70 95
1/2 75
102
105
142
9/16 110 149 149 202
5/8 150
203
200
271
3/4
265 359 365 495
7/8 420
569
600
813
1 640
867
890
1205
* Torque categories for bolts and capscrews are identified by
their head markings.
C. METRIC BOLTS
BOLT
DIA. "A"
STD COARSE BOLT TORQUE*
8.8 10.9
ft·lbf N·m ft·lbf N·m
M3 0.4
0.5
1.3 1.8
M4 2.2 3 3.3 4.5
M5 4 6 7 9
M6 7 10
11 15
M8 18 25 26 35
M10 37 50 52 70
M12 66 90 92 125
M14 103 140 148 200
M16 166 225 229 310
M20 321 435 450 610
M24 553 750 774 1050
M30 1103
1495
1550 2100
M36 1917
2600
2710 3675
*
Torque categories for bolts and capscrews are identified by
their head markings.
SAE-5
SAE-8
