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HANGCHA CPD30-A - Page 71

HANGCHA CPD30-A
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67
Table for bolts tightening torque
Unit: N·m
Bolt’s
diameter
Grade
4.6
5.6
6.6
8.8
6
45
57
68
912
8
1012
1215
1418
2229
10
2025
2531
2939
4458
12
3544
4454
4964
76107
14
5469
6988
8398
121162
16
88108
108137
127157
189252
18
118147
147186
176216
260347
20
167206
206265
245314
369492
22
225284
284343
343431
502669
24
294370
370441
441539
638850
27
441519
539686
637784
9331244
Note:
Use entirely 8.8 grade bolt in the important joint position.
Bolt‟s grade can be found in the head of the bolt, if it can‟t be found, the grade is 8.8.

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