PRONAR T669/1, Руководство оператора, Страница: 127 / 137

SECTION 5 Pronar T669/1
5.37
5.10 TIGHTENING TORQUE FOR NUT AND BOLT
CONNECTIONS
Unless other tightening parameters are given, during maintenance repair work apply
appropriate torque to tightening nut and bolt connections. Recommended tightening torque of
most frequently applied nut and bolt connections are given in table below. Given values apply
to non-lubricated steel bolts.
TABLE 5.7 Tightening torque for nut and bolt connections
5.8
(1)
8.8
(1)
10.9
(1)
THREAD
METRIC
Md [Nm]
M10 37 49 72
M12 64 85 125
M14 100 135 200
M16 160 210 310
M20 300 425 610
M24 530 730 1,050
M27 820 1,150 1,650
M30 1,050 1,450 2,100
(1)
– resistance class according to DIN ISO 898 standard