General Torque Specifications

Submitted by xjcdadmin on Thu, 06/27/2013 - 10:26
Model(s)

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 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

4.5

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

A: Distance across flats B: Outside thread diameter

DEFINITION OF UNITS

Unit

Read

Definition

Mesure

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

L
cm3

Liter
Cubic centimeter

 

Volume or Capacity

r/min

Rotation per minute

 

Engine Speec