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SPECIFICATIONS
BOLT TORQUE
The tables below are for reference purposes only and their use by anyone is entirely voluntary, unless otherwise noted.
Reliance on their content for any purpose is at the sole risk of that person and any loss or damage resulting from the
use of this information is the responsibility of that person.
SAE
SAE - 2
Grade
and
Head
Markings
BOLT DIAMETER (A)
N.m
1/4"
7.5
5/16"
15
3/8"
27
7/16"
41
1/2"
68
9/16"
97
5/8"
122
3/4"
217
7/8"
230
1"
298
1-1/8"
407
1-1/4"
570
4.8
METRIC
Grade
and
4.8
Head
Markings
BOLT DIAMETER
(A)
4.8
N.m
M3
0.5
M4
3
M5
5
M6
6
M8
15
M10
29
M12
50
M14
80
M16
125
M18
175
M20
240
M22
330
M24
425
M27
625
16
SAE - 5
SAE - 8
BOLT DIAMETER
ENGLISH
BOLT TORQUE *
SAE 2
SAE 5
Ft-lb.
N.m
5.5
11
11
23
20
41
30
68
50
102
70
149
90
203
160
353
170
542
220
786
300
1085
420
2631
8.8
12.9
10.9
12.9
8.8
10.9
METRIC
BOLT TORQUE *
8.8
Ft-lb.
N.m
Ft-lb.
0.4
-
-
2.2
-
-
4
-
-
4.5
11
8.5
11
28
20
21
55
40
37
95
70
60
150
110
92
240
175
125
330
250
180
475
350
250
650
475
310
825
600
450
1200
875
2 INCH CHIPPER/SHREDDER
A
SAE 8
Ft-lb.
N.m
Ft-lb.
8
16
12
17
34
25
30
61
45
50
95
70
75
149
110
110
203
150
150
312
230
260
515
380
400
814
600
580
1220
900
800
1736
1280
1940
2468
1820
BOLT DIAMETER
A
10.9
12.9
N.m
Ft-lb.
N.m
-
-
-
-
-
-
-
-
-
17
12
19
40
30
47
80
60
95
140
105
165
225
165
260
350
255
400
475
350
560
675
500
800
925
675
1075
1150
850
1350
1700
1250
2000
*
Torque value for bolts and
capscrews are identified by their
head markings.
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%.
Ft-lb.
-
-
-
14.5
35
70
120
190
300
410
580
800
1000
1500
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