This standard, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It here covers a wide range of bolted joints used in engineering applications. The standard provides methods for the design, manufacture, inspection, and testing of bolted assemblies to ensure their reliability. It also specifies the materials tha

DIN 931 specifies the standards for six-sided head bolts. These fixings are widely employed in various fields, from automotive engineering toconstruction. The DIN 931 standard covers sizes such as diameter and thread type. It also sets criteria for material composition and precision. Complying with DIN 931 ensures robust connections and improves