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FOREWORD
STANDARD TIGHTENING TORQUE
STANDARD TIGHTENING TORQUE TABLE (WHEN USING TORQUE WRENCH)
# In the case of metric nuts and bolts for which there is no special instruction, tighten to the torque given in
the table below.
Thread diameter
of bolt
mm
6
8
10
12
14
16
18
20
22
24
27
30
33
36
39
Thread diameter
of bolt
mm
6
8
10
12
TABLE OF TIGHTENING TORQUES FOR FLARED NUTS
# In the case of flared nuts for which there is no
special instruction, tighten to the torque given in
the table below.
Thread diameter
mm
14
18
22
24
30
33
36
42
00-12
Width across
flats
mm
10
13
17
19
22
24
27
30
32
36
41
46
50
55
60
Width across
flats
mm
10
13
14
27
Width across flat
mm
19
24
27
32
36
41
46
55
STANDARD TIGHTENING TORQUE
Nm
13.2
1.4
0
31
0
3
66
7
0
113
0
10
177
0
19
279
0
30
382
0
39
549
59
0
745
0
83
927
103
0
1320
140
0
1720
0
190
2210
0
240
2750
0
290
3290
340
0
Nm
7.85
0
1.95
18.6
4.9
0
40.2
0
5.9
82.35
7.85
0
Sealing surface
Tightening torque
Nm
24.5
0
4.9
49
0
19.6
78.5
0
19.6
137.3
29.4
0
176.5
0
29.4
196.1
0
49
245.2
0
49
294.2
49
0
kgm
1.35
0.15
0
3.2
0
0.3
6.7
0.7
0
11.5
0
1
18
0
2
28.5
0
3
39
0
4
56
6
0
76
0
8.5
94.5
10.5
0
135
15
0
175
0
20
225
0
25
280
0
30
335
35
0
kgm
0.8
0
0.2
1.9
0.5
0
4.1
0
0.6
8.4
0.8
0
SAD00483
kgm
2.5
0
0.5
5
0
2
8
0
2
14
3
0
18
0
3
20
0
5
25
0
5
30
5
0
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