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
A (Nut)	B (Bolt)	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/m²N/mm	Pressure Spring rate
L cm³	Liter Cubic centimeter		Volume or Capacity
r/min	Rotation per minute		Engine Speec

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