This specification, EN 14399:2005, defines the criteria for high-strength structural bolted assemblies. It addresses a broad range of bolted joints used in engineering applications. The standard outlines guidelines for the design, fabrication, inspection, and testing of bolted assemblies to ensure their reliability. It also specifies the components

DIN 931 outlines the requirements for hex head fasteners. These fixings are widely employed in diverse fields, from mechanical engineering toconstruction. The DIN 931 standard covers dimensions such as length and thread pitch. It also establishes standards for material quality and accuracy. Adhering to DIN 931 ensures robust connections and enhan