Content with HR Countersunk Bolt

12 January 2022
We understand the difficulties by the end-users and purchasing departments in choosing the right components for different installation methods of High-strength structural bolting assemblies for preloading (HR). Different installation methods and product grades may require additional components like DTI washers, hardened washers, bolt face or nut face washers. Sometimes, the number and type of component change, depending on which part is rotated (the nut or the bolt head). We have prepared the HR configurator below to simplify this task.
Read more about BS EN 14399 (HR) Configurator

12 December 2015
Andrews Fasteners Bolt Length Calculator EN 14399 Pre-load bolt assemblies (HR) HR Bolt to EN 14399-3:2015 / HR Countersunk bolt EN 14399-7:2007 This calculator is for guidance only and is used for calculating the minimum recommended bolt length based on maximum allowed thickness of the assembly components and the steelwork. This information is provided in good faith and is for your guidance only. Andrews Fasteners Limited / AndFast Malaysia cannot accept any liability for actions taken by third parties based on this information.
Read more about Bolt Length Calculator for HR Bolts and HR Countersunk Bolts (EN 14399-3/7)