This document, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It deals with a comprehensive range of bolted joints used in engineering applications. The standard provides methods for the design, production, inspection, and testing of bolted assemblies to ensure their safety. It also specifies the elements th

DIN 931 specifies the requirements for six-sided head screws. These nuts are commonly used in numerous industries, from automotive engineering toconstruction. The DIN 931 standard covers parameters such as diameter and thread type. It also sets criteria for material grade and tolerances. Adhering to DIN 931 ensures robust connections and enhances