Tolerances for fasteners - Part 3: Washers for bolts, screws and nuts - Product grades A, C and F (ISO/DIS 4759-3:2014); German version prEN ISO 4759-3:2014
High-strength structural bolting assemblies for preloading - Part 3: System HR - Hexagon bolt and nut assemblies; German version EN 14399-3:2005— 20 стр.
High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies; German version EN 14399-4:2005— 19 стр.