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GENERAL CHARACTERISTICS
OF TIGHTENING TORQUES
This table specifies the tightening torques for
ordinary fixings with standard ISO pitch thre-
ads. The characteristics of the tightening tor-
ques of special components or assemblies are
stated in the relevant sections of this manual.
To avoid any deformation, tighten the assem-
blies with several fixing points in a cross pat-
tern and in gradual stages, until the final tigh-
tening torque is reached. Unless specified
otherwise, the characteristics of the tightening
torque refer to clean dry threads. The compo-
nents must be at ambient temperature.
A: Distance between sides
B: Outer thread diameter
Unit
mm
cm
kg
N
Nm
m•kg
Pa
N/mm
L
3
cm
R/min
Denomination
Milimeter
Centimeter
Kilogram
Newton
Newton meter
Kilogram-meter
Pascal
Newton per milimeter
Litre
Cbic centimeter
Revolutions per minute
CONVERSION TABLES
A
(nut)
10 mm
12 mm
14 mm 10 mm
17 mm 12 mm
19 mm 14 mm
22 mm 16 mm
Definition
-3
10
meters
-2
10
meters
3
10
grams
1 kg x m/sec
N x m
m x kg
2
N/m
Nmm
2-13
SPEC
General characteristics
B
of the tightening torques
(bolt)
Nm
m • kg
6 mm
6
0.6
8 mm
15
1.5
30
3.0
55
5.5
85
8.5
130
13.0
Dimension
Length
Length
Weight
2
Force
Tightening torque
Tightening torque
Pressure
Spring rating
Volumen
or capacity
Engine revolution
speed
lb•foot
4.3
11
22
40
61
94
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