2016DIN EN ISO 2320:2016-05 Fasteners - Prevailing torque steel nuts - Functional properties (ISO 2320:2015); German version EN ISO 2320:2015
2016DIN EN ISO 2320:2016 Fasteners - Prevailing torque steel nuts - Functional properties (ISO 2320:2015); German version EN ISO 2320:2015
2009DIN EN ISO 2320:2009 Prevailing torque type steel nuts - Mechanical and performance properties (ISO 2320:2008); English version of DIN EN ISO 2320:2009-03