General Torque Specifications

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GENERAL TORQUE SPECIFICATIONS

This chart specifies torque for standard fasteners with standard l.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 criss-cross fashion, 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 (Nut)

B (Bolt)

General torque specifications

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

13.0

94

 

DEFINITION OF UNITS

Unit

Read

Definition

Measure

mm cm

millimeter centimeter

10"3 meter 10-2 meter

Length Length

kg

kilogram

103 gram

Weight

N

Newton

1 kg x m/sec2

Force

Nm 
m-kg

Newton meter 
Meter kilogram

N x m 
m x kg

Torque 
Torque

Pa 

N/mm

Pascal

Newton per millimeter

N/m2

N/mm

Pressure 

Spring rate

cm3

Liter

Cubic centimeter

 

Volume or Capacity

r/min

Rotation per minute

 

Engine Speed