GENERAL TORQUE SPECIFICATIONS/DEFINITION OF UNITS SPEC

EC220001

GENERAL TORQUE SPECIFICATIONS

This chart specifies torque for standard fasteners with standard I.S.O. pitch threads. Torque specifications for special components or assemblies are included in the applicable sections 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 specified, torque specifications call for clean, dry threads. Components should be at room temperature.

 

 

 

 

 

 

A: Distance between flats

A

B

 

TORQUE

 

B: Outside thread diameter

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

 

 

 

 

 

 

 

 

EC230000

DEFINITION OF UNITS

Unit

Read

Definition

Measure

 

 

 

 

mm

millimeter

10-3meter

Length

cm

centimeter

10-2meter

Length

kg

kilogram

103 gram

Weight

N

Newton

1 kg m/sec2

Force

Nm

Newton meter

N m

Torque

m • kg

Meter kilogram

m kg

Torque

 

 

 

 

Pa

Pascal

N/m2

Pressure

N/mm

Newton per millimeter

N/mm

Spring rate

 

 

 

 

L

Liter

Volume or capacity

cm3

Cubic centimeter

Volume or capacity

r/min

Revolution per minute

Engine speed

 

 

 

 

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