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

DIN 931 outlines the requirements for six-sided head bolts. These bolts are commonly used in diverse fields, from structural engineering tomanufacturing. The DIN 931 standard covers dimensions such as head size and thread pitch. It also establishes criteria for material composition and tolerances. Adhering to DIN 931 ensures durable connections a