2020EN ISO 3506-2:2020 Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners - Part 2: Nuts with specified grades and property classes (ISO 3506-2:2020)
2009EN ISO 3506-2:2009 Mechanical properties of corrosion-resistant stainless steel fasteners - Part 2: Nuts (ISO 3506-2:2009)
1997EN ISO 3506-2:1997 Mechanical Properties of Corrosion-Resistant Stainless-Steel Fasteners - Part 2: Nuts