Content with HR Bolt

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).
Read more about BS EN 14399 High-Strength Structural Bolting Assemblies for Preload Configurator (HR) ↬

Andrews Fasteners Bolt Length Calculator for BS EN 14399 High-strength structural bolting assemblies for preloading (HR) HR Bolt to EN 14399-3:2015 / HR Countersunk bolt EN 14399-7:2018 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 can not 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) ↬