This specification, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It covers a comprehensive range of bolted joints used in structural applications. The standard establishes methods for the design, manufacture, inspection, and testing of bolted assemblies to ensure their safety. It also specifies the element

DIN 931 outlines the specifications for hex head fasteners. These bolts are widely employed in numerous fields, from mechanical engineering toassembly. The DIN 931 standard covers dimensions such as diameter and thread pitch. It also sets requirements for material grade and accuracy. Following DIN 931 ensures durable connections and boosts the pe