Tightening torques for union nuts as per DIN 3859-2
1 Union nut
2 Screw fixture
3 O-ring
4 Linear ball bearing
Union nut: On installing the ball-type union, after tightening the union nut firmly by hand (noticeable increase
in force), it should be tightened another 1/4 turn (90°) past this point.
Tightening torques for spigot unions with O-ring to ISO 6149-2
Thread
Torque (Nm) +10%
M8 x 1
10
M10 x 1
20
M12 x 1.5
35
M14 x 1.5
45
M16 x 1.5
55
M18 x 1.5
70
M20 x 1.5
1)
80
M22 x 1.5
100
MS15035/00E 2018-08
| General Information | 35
TIM-ID: 0000002333 - 018
Summary of Contents for 12V4000M*3 series
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