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

DIN 931 defines the standards for hex head bolts. These bolts are commonly used in various applications, from mechanical engineering toassembly. The DIN 931 standard covers parameters such as length and thread pitch. It also sets requirements for material grade and tolerances. Complying with DIN 931 ensures reliable connections and boosts the saf