This specification, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It covers a broad range of bolted connections used in structural applications. The standard establishes procedures for the design, fabrication, inspection, and testing of bolted assemblies to ensure their performance. It also specifies the el

DIN 931 defines the requirements for six-sided head screws. These fixings are commonly used in numerous fields, from mechanical engineering toconstruction. The DIN 931 standard covers dimensions such as diameter and thread pitch. It also establishes requirements for material composition and accuracy. Adhering to DIN 931 ensures robust connections