The EN 14399 standard encompasses the requirements for high-strength structural bolting assemblies for preloading, providing specifications for the materials, manufacturing, testing, and supply of these assemblies. This standard ensures that structural bolting assemblies meet the necessary criteria for performance, safety, and reliability in construction and engineering applications. By defining the characteristics and performance requirements of these assemblies, EN 14399 aims to enhance the overall quality and consistency of structural bolting in the industry, ultimately contributing to the safety and integrity of structures and infrastructure.