EN 14399-8:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Fit bolts
5 Nuts
6 Designation of the fit bolt/nut assembly
7 Associated washers
8 Functional characteristics of the fit bolt/nut/washer(s)
  assembly
Bibliography

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 testsfor 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 fub  As ) 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.