RO
SR EN ISO 2320:2009
Prevailing torque type steel nuts - Mechanical and performance properties (ISO 2320:2008)
ISO 2320:2008 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. ISO 2320:2008 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; f) within the temperature range of -50 °C to +120 °C for prevailing torque non-metallic insert type nuts. ISO 2320:2008 does not apply: 1) to nuts of type e), outside the range -50 °C to +150 °C for prevailing torque all metal type nuts, when it is necessary to consult an
Status :
Withdrawn
Approval date : 4/30/2009
Publish date : 5/2/2009
Withdrawal date : 5/31/2016
Number of pages : 26
ICS : 21.060.20 Nuts
Technical Committee : 59 - Screw threads, fasteners and bearings
- Replaces SR EN ISO 2320:2002/AC:2008
- Replaces SR EN ISO 2320:2002
- Normative reference SR EN ISO 898-1:2009
- Normative reference SR EN ISO 16047:2005
- Normative reference SR EN ISO 898-6:2002
- Normative reference SR EN 20273:2003
- Replaced by SR EN ISO 2320:2016