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ISO 2320

Fasteners - Prevailing torque steel nuts - Functional properties

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Organization: ISO
Publication Date: 1 December 2015
Status: active
Page Count: 26
ICS Code (Nuts): 21.060.20
scope:

This International Standard specifies the functional properties for prevailing torque steel nuts when tested at an ambient temperature range of +10 °C to +35 °C. It includes a combined test method to determine the prevailing torque properties and the torque/clamp force properties at the same time.

It applies to prevailing torque all metal type nuts and prevailing torque non-metallic insert type nuts:

- with triangular ISO thread in accordance with ISO 68-1; - with diameter/pitch combination in accordance with ISO 261 and ISO 262;

- with coarse pitch thread M5 to M39 or with fine pitch thread M8 × 1 to M39 × 3; -with thread tolerances in accordance with ISO 965-2;

-with mechanical properties in accordance with ISO 898-2;

Prevailing torque values specified in this standard are based on laboratory test conditions.

NOTE 1 Actual prevailing torques in practical application can vary.

NOTE 2 All metal type nuts conforming to the requirements of this International Standard are used in applications ranging from −50 °C to +150 °C.

NOTE 3 Non-metallic insert type nuts conforming to the requirements of this International Standard are used in applications ranging from −0 °C to +120 °C.

WARNING -Temperatures outside the ambient temperature range can influence the functional properties (torque/clamp force and prevailing torque properties), see Annex A.

Document History

ISO 2320
December 1, 2015
Fasteners - Prevailing torque steel nuts - Functional properties
This International Standard specifies the functional properties for prevailing torque steel nuts when tested at an ambient temperature range of +10 °C to +35 °C. It includes a combined test method to...
November 1, 2008
Prevailing torque type steel nuts - Mechanical and performance properties
This International Standard specifies the mechanical and performance properties for prevailing torque type steel nuts when tested at an ambient temperature range of +10 °C to +35 °C. It includes a...
November 1, 1997
Prevailing Torque Type Steel Hexagon Nuts - Mechanical and Performance Properties
A description is not available for this item.
November 1, 1997
Prevailing Torque Type Steel Hexagon Nuts - Mechanical and Performance Properties
This International Standard specifies the mechanical and performance properties for prevailing torque type steel hexagon nuts (including those with flange) when tested over an ambient temperature...
January 1, 1983
Prevailing Torque Type Steel Hexagon Nuts - Mechanical and Performance Properties
A description is not available for this item.

References

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