Reference number
ISO 2320:2015
International Standard
ISO 2320:2015
Fasteners — Prevailing torque steel nuts — Functional properties
Edition 5
2015-12
Read sample
ISO 2320:2015
61175
Published (Edition 5, 2015)
This publication was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 2320:2015

ISO 2320:2015
61175
Language
Format
CHF 129
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Abstract

ISO 2320:2015 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 −50 °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.

General information

  •  : Published
     : 2015-12
    : International Standard confirmed [90.93]
  •  : 5
     : 20
  • ISO/TC 2/SC 12
    21.060.20 
  • RSS updates

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