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

DIN 931 specifies the specifications for hex head fasteners. These fixings are frequently utilized in diverse fields, from automotive engineering toassembly. The DIN 931 standard covers dimensions such as diameter and thread type. It also sets standards for material grade and precision. Complying with DIN 931 ensures reliable connections and boos