Bolt Torque - Midland SIDE DUMP GRAVEL TRAILER Operator's Manual

7

BOLT TORQUE

7.1 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
SAE 2
Diameter
"A" (N.m) (lb-ft)
1/4" 8
5/16"
13 10
3/8"
27 20
7/16" 41 30
1/2"
61 45
9/16"
95 60
5/8"
128 95
3/4"
225 165
7/8"
230 170
1"
345 225
METRIC TORQUE SPECIFICATIONS
Bolt Torque*
Bolt
8.8
Diameter
"A" (N.m) (lb-ft)
.5
M3
M4 3
M5 6
10
M6
M8 25
M10 50
90
M12
M14 140
M16 225
435
M20
750
M24
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)
(N.m) (lb-ft)
12
6 9 17
25
19 36
45
33 63
72 100
53
110
80 155
155
115 220
215
160 305
390
290 540
570
420 880
850
630 1320
10.9
(N.m) (lb-ft)
.4 1.8 1.3
2.2 4.5 3.3
4 9 7
7 15 11
18 35 26
37 70 52
66 125 92
103 200 148
166 310 229
321 610 450
553 1050 774
1103 2100 1550
1917 3675 2710
SAE 8
12
27
45
75
115
165
220
400
650
970
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