DIN EN 14399-8-2008 预荷载高强度结构螺栓.第8部分:HV系统.六角螺栓和螺母组件
High-strength structural bolting assemblies for preloading - Part 8: System HV - Hexagon fit bolt and nut assemblies; English version of DIN EN 14399-8:2008-03
This document belongs to the suite of European Standards EN 14399 and is designed to be read in conjunction with
EN 14399-1 for:
-- general requirements;
-- testing for conformity evaluation;
-- evaluation of conformity;
-- regulatory marking;
for assemblies of high-strength structural fit bolts and nuts of system HV suitable for preloaded joints with, thread
sizes M12 to M36 and bolt property class 10.9 and EN 14399-2 for suitability testing.
This part gives requirements for:
-- dimensions;
-- associated washer(s) according to EN 14399-6;
-- performance and suitability tests
for assemblies with thread sizes M12 to M36 and bolt property class 10.9.
Assemblies of hexagon fit bolts with shaft diameter (d + 1 mm) and nuts according to this part of this European
Standard have been designed to allow preloading of at least 0,7]ub x As1) according to EN 1993-1-8 (Eurocode 3)
and to obtain ductility predominantly by deformation of the engaged thread. For this purpose the components have
the following characteristics:
-- nut height approximately 0,8 d;
-- hexagon fit bolt with short thread length.