This document, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It covers a broad range of bolted assemblies used in structural applications. The standard outlines methods for the design, production, inspection, and testing of bolted assemblies to ensure their safety. It also specifies the elements that can be

DIN 931 defines the standards for hexagonal head bolts. These fixings are widely employed in various fields, from structural engineering tomanufacturing. The DIN 931 standard covers dimensions such as length and thread pitch. It also establishes standards for material grade and tolerances. Complying with DIN 931 ensures durable connections and im