I.S. EN 14399-4:2015现行
High-strength Structural Bolting Assemblies for Preloading Part 4: System hv - Hexagon Bolt and nut Assemblies
出版：National Standards Authority of Ireland
专家解读视频
Defines together with EN 14399-1 and EN 14399-2, the requirements for assemblies of high-strength structural bolts and nuts of system HV suitable for preloaded joints with large widths across flats, thread sizes M12 to M36 and property classes 10.9/10.
SN EN 14399-4:2015 - Identical
ONORM EN 14399-4:2015 - Identical
NF EN 14399-4:2015 - Identical
NBN EN 14399-4:2015 - Identical
NS EN 14399-4:2015 - Identical
