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About This Item
Full Description
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;
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.
Cross References:
ISO 273
ISO 898-1
ISO 898-2
ISO 965-2
ISO 16047:2005
ISO 68-1
ISO 261
ISO 262
All current amendments available at time of purchase are included with the purchase of this document.
Document History
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BS EN ISO 2320:2015
viewing
Fasteners. Prevailing torque steel nuts. Functional properties- Most Recent
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BS EN ISO 2320:2008
Prevailing torque type steel nuts. Mechanical and performance properties- Historical Version
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BS EN ISO 2320:1998
Prevailing torque type steel hexagon nuts. Mechanical and performance properties- Historical Version
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BS 4929-1:1973
Specification for steel hexagon prevailing-torque type nuts-Metric series- Historical Version