Installation, Operation and Maintenance manual
23
PowerCore
®
Dust Collectors - Series CPV
TABLE 1 – TORQUE VALUES FOR BOLTS WITH ISO METRIC THREAD
Nominal
diameter
(mm)
Thread pitch
(mm)
Stress area
(mm²)
Torque value* (Nm)
Grade 8.8
Grade 10.9
Grade 12.9
8
1
20.1
10.4
15.3
17.9
7
1
28.9
17.2
25
30
8
1.25
36.6
25
37
44
10
1.5
58
50
73
86
12
1.75
84.3
86
127
148
14
2
115
137
201
235
16
2
157
214
314
368
18
2.5
192
306
435
509
20
2.5
245
432
615
719
22
2.5
303
592
843
987
24
3
353
744
1060
1240
27
3
459
1100
1570
1840
30
3.5
561
1500
2130
2500
* For nuts and bolts to ISO 4017.