CEN - EN ISO 2320
Prevailing torque type steel nuts - Mechanical and performance properties
Organization: | CEN |
Publication Date: | 1 November 2008 |
Status: | inactive |
Page Count: | 26 |
ICS Code (Nuts): | 21.060.20 |
scope:
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 single test to determine the prevailing torque properties (performance properties) and/or the torque/clamp force properties.
This International Standard applies to prevailing torque all metal type nuts and prevailing torque non-metallic insert type nuts:
a) with triangular ISO thread according to ISO 68-1;
b) with diameter/pitch combination according to ISO 261 and ISO 262;
c) with coarse pitch thread M3 to M39 and mechanical properties according to ISO 898-2;
d) with fine pitch thread M8×1 to M39×3 and mechanical properties according to ISO 898-6;
e) within the temperature range of −50 °C to +150 °C for prevailing torque all metal type nuts;
NOTE 1 See Clause 7, paragraph 3.
f) within the temperature range of −50 °C to +120 °C for prevailing torque non-metallic insert type nuts.
NOTE 2 See Clause 7, paragraph 4.
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