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

DIN 931 defines the standards for hex head screws. These bolts are commonly used in various industries, from mechanical engineering toconstruction. The DIN 931 standard covers parameters such as head size and thread type. It also sets requirements for material website composition and precision. Complying with DIN 931 ensures robust connections an