This standard, EN 14399:2005, defines the specifications for high-strength structural bolted assemblies. It covers a comprehensive range of bolted assemblies used in engineering applications. The standard provides methods for the design, manufacture, inspection, and testing of bolted assemblies to e

DIN 931 specifies the specifications for hexagonal head fasteners. These bolts are widely employed in various fields, from structural engineering tomanufacturing. The DIN 931 standard covers sizes such as head size and thread form. It also sets requirements for material composition and precision.