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Pronar PT512
METRIC
THREAD
M20
M24
M27
M30
(1)
– resistance class according to DIN ISO 898 standard
FIGURE 5.14 Bolt with metric thread
(1) resistance class, (d) thread diameter
Unless other tightening parameters are given, during maintenance and repairs apply
appropriate torque to tightening nut and bolt connections. Recommended tightening torque of
most frequently applied bolt connections are given in table (5.6). Given values apply to non-
lubricated steel bolts.
Hydraulic lines should be tightened with torque of 50 – 70 Nm.
(1)
5.8
300
530
820
1 050
5.36
(1)
8.8
Md [Nm]
425
730
1 150
1 450
CHAPTER 5
(1)
10.9
610
1 050
1 650
2 100
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