?NORM EN 14399-7: 2018 10 01现行
High-strength structural bolting assemblies for preloading Part 7: System HR — Countersunk head bolt and nut assemblies
出版：Osterreichisches Normungsinstitut/Austrian Standards
专家解读视频
This European Standard, together with EN 14399-1 and EN 14399-2, specifies the requirements for high-strength countersunk head screws and nuts of the HR system suitable for preloading threaded joints with thread sizes M12 to M36, strength classes 8.8 / 8 or 8.8 / 10 and 10.9 / 10.
EN 14399-7 : 2007 - Identical
EN 14399-7:2018 - Identical
EN 14399-7:2018 - Identical
EN 14399-7 : 2007 - Identical
