High-strength structural bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload; German version EN 14399-10:2018— 31 стр.
High-strength structural bolting assemblies for preloading - Part 7: System HR - Countersunk head bolt and nut assemblies; German version EN 14399-7:2018— 30 стр.