GENERAL -
Standard Part/Tightening-Torque Table
00-33
STANDARD PART/TIGHTENING-TORQUE TABLE
00100110033
Each torque value in the table is a standard value
for tightening under the following conditions.
(1) Bolts, nuts and washers are all made of steel
and plated with zinc.
(2) The threads and bearing surface of bolts and
nuts are all in dry condition.
The values in the table are not applicable:
(1) If toothed washers are inserted.
(2) If plastic parts are fastened.
(3) If bolts are tightened to plastic or die-cast
inserted nuts.
(4) If self-tapping screws or self-locking nuts are
used.
Standard bolt and nut tightening torque
Thread size
Torque Nm
Bolt nominal
diameter (mm)
Pitch (mm)
Head mark “4”
Head mark “7”
Head mark “8”
M5
0.8
2.5
4.9
5.9
M6
1.0
4.9
8.8
9.8
M8
1.25
12
22
25
M10
1.25
24
44
52
M12
1.25
41
81
96
M14
1.5
72
137
157
M16
1.5
111
206
235
M18
1.5
167
304
343
M20
1.5
226
412
481
M22
1.5
304
559
647
M24
1.5
392
735
853
Flange bolt and nut tightening torque
Thread size
Torque Nm
Bolt nominal
diameter (mm)
Pitch (mm)
Head mark “4”
Head mark “7”
Head mark “8”
M6
1.0
4.9
9.8
12
M8
1.25
13
24
28
M10
1.25
26
49
57
M10
1.5
24
44
54
M12
1.25
46
93
103
M12
1.75
42
81
96
Summary of Contents for MUT-II
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