Recommended torques, A. general, B. sae bolts – MacDon D65 User Manual
Page 7: C. metric bolts
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Revision A
RECOMMENDED TORQUES
A. GENERAL
The tables shown below give correct torque
values for various bolts and cap screws.
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 cap
screws 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
lbf·ft N·m lbf·ft 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
1,205
* Torque categories for bolts and cap screws are identified by
their head markings.
C. METRIC BOLTS
BOLT DIA.
"A"
STD COARSE BOLT TORQUE*
8.8 10.9
lbf·ft N·m lbf·ft 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 1,103
1,495
1,550
2,100
M36 1,917
2,600
2,710
3,675
* Torque categories for bolts and cap screws are identified by
their head markings.
SAE-5
SAE-8