This standard, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It addresses a wide range of bolted joints used in civil applications. The standard outlines procedures for the design, fabrication, inspection, and testing of bolted assemblies to ensure their performance. It also specifies the materials that can

DIN 931 outlines the specifications for six-sided head bolts. These nuts are widely employed in numerous fields, from structural engineering tomanufacturing. The DIN 931 standard covers sizes such as diameter and thread type. It also sets requirements for material quality and precision. Complying with DIN 931 ensures durable connections and impro