This standard, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It deals with a broad range of bolted joints used in engineering applications. The standard establishes methods for the design, fabrication, inspection, and testing of bolted assemblies to ensure their safety. It also specifies the components that

DIN 931 specifies the requirements for six-sided head fasteners. These bolts are frequently utilized in various industries, from mechanical engineering toconstruction. The DIN 931 standard covers parameters such as length and thread type. It also sets criteria for material composition and precision. Complying with DIN 931 ensures durable connecti