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GENERAL TORQUE SPECIFICATIONS/DEFINITION OF UNITS
GENERAL TORQUE
SPECIFICATIONS
This chart specifies torque for standard fasten-
ers with standard I.S.O. pitch treads. Torque
specifications for special components or
assemblies are included in the applicable sec-
tions of this book. To avoid warpage, tighten
multi fastener assemblies in a crisscross fash-
ion, in progressive stages, until full torque is
reached. Unless otherwise specifications call
for clean, dry treads. Components should be at
room temperature.
DEFINITION OF UNITS
Unit
mm
Millimeter
cm
Centimeter
kg
Kilogram
N
Newton
Nm
Newton meter
m·kg
Meter kilogram
Pa
Pascal
N/mm
Newton per millimeter
L
Liter
3
cm
Cubic centimeter
r/min
Rotation per minute
Read
-3
10
-2
10
10
1 kg × m/sec
N × m
m × kg
N/m
N/mm
33
Tread size
M4
M5
M6
M7
M8
M10
M12
Definition
meter
meter
3
gram
2
2
—
—
SPEC
Tightening torque
Nm
m·kgf
2
0.2
3
0.3
7
0.7
10
1.0
15
1.5
30
3.0
60
6.0
Measure
Length
Length
Weight
Force
Torque
Torque
Pressure
Spring rate
Volume or capacity
Engine speed
ft·lbf
1.5
2.2
5.2
7.4
11.1
22.1
44.3
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