2-12
GENERAL TORQUE SPECIFICATIONS/
DEFINITION OF UNITS
SPEC
This chart specifies torque for standard faste-
ners with standard I.S.O. pitch threads. Torque
specifications for special components or assem-
blies are included in the applicable sections of
this book. To avoid warpage, tighten multi-faste-
ner assemblies in a crisscross fashion, in pro-
gressive stages, until full torque is reached.
Unless otherwise specified, torque specifications
call for clean, dry threads. Components should
be at room temperature.
A: Distance across flats
B: Outside thread diameter
EC230000
DEFINITION OF UNITS
EC220001
GENERAL TORQUE SPECIFICATIONS
A
B
TORQUE SPECIFICATION
(Nut)
(Bolt)
Nm
m•kg
ft•lb
10 mm
6 mm
6
0.6
4.3
12 mm
8 mm
15
1.5
11
14 mm
10 mm
30
3.0
22
17 mm
12 mm
55
5.5
40
19 mm
14 mm
85
8.5
61
22 mm
16 mm
130
13
94
Unit
Read
Definition
Measure
mm
milimeter
10-
3
meter
Length
cm
centimeter
10-
2
meter
Length
kg
kilogram
10
3
gram
Weight
N
Newton
1 kg
×
m/sec
2
Force
Nm
Newton meter
N
×
m
Torque
m•kg
Meter kilogrma
m
×
kg
Torque
Pa
Pascal
N/m
2
Pressure
N/mm
Newton per millimeter
N/mm
Spring rate
L
Liter
—
Volume or capacity
cm
3
Cubic centimeter
—
Volume or capacity
r/min
Revolution per minute
—
Engine speed
5MW-9-30-2 7/3/00 2:20 PM Page 13
