2020EN ISO 3506-1:2020 Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners - Part 1: Bolts, screws and studs with specified grades and property classes (ISO 3506-1:2020)
2009EN ISO 3506-1:2009 Mechanical properties of corrosion-resistant stainless steel fasteners - Part 1: Bolts, screws and studs (ISO 3506-1:2009)
1997EN ISO 3506-1:1997 Mechanical Properties of Corrosion-Resistant Stainless-Steel Fasteners - Part 1: Bolts, Screws and Studs ISO 3506-1: 1997