High-strength structural bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload; German version EN 14399-10:2009— 24 стр.
High-strength structural bolting assemblies for preloading - Part 7: System HR - Countersunk head bolt and nut assemblies; German version EN 14399-7:2007— 23 стр.