00-28
GENERAL -
STANDARD PART/TIGHTENING-TORQUE TABLE
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.
Standard bolt and nut tightening torque
Thread size
Bolt nominal
Pitch (mm)
diameter (mm)
M5
0.8
M6
1.0
M8
1.25
M10
1.25
M12
1.25
M14
1.5
M16
1.5
M18
1.5
M20
1.5
M22
1.5
M24
1.5
Flange bolt and nut tightening torque
Thread size
Bolt nominal
Pitch (mm)
diameter (mm)
M6
1.0
M8
1.25
M10
1.25
M10
1.5
M12
1.25
M12
1.75
NOTE
1. Be sure to use only the specified bolts and nuts, and always tighten them to the specified torques.
2. Bolts marked with indications such as 4T or 7T are reinforced bolts. The larger the number, the
greater the bolt strength.
Standard Part/Tightening-Torque Table
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.
Torque N·m
Head mark "4"
2.50.5
5.01.0
122
244
418
7312
11020
16525
22535
30040
39555
Torque N·m
Head mark "4"
5.01.0
132
264
244
468
438
Head mark "7"
Head mark "8"
5.01.0
6.01.0
9.02.0
102
224
254
4410
537
8312
9812
14020
15525
21030
23535
30040
34050
41060
48070
55585
64595
735105
855125
Head mark "7"
Head mark "8"
102
122
244
275
499
587
458
5510
9515
10515
8312
9812