This document, EN 14399:2005, defines the specifications for high-strength structural bolted assemblies. It deals with a wide range of bolted assemblies used in civil applications. The standard outlines guidelines for the design, production, inspection, and testing of bolted assemblies to ensure the

DIN 931 defines the requirements for hexagonal head bolts. These nuts are widely employed in numerous industries, from mechanical engineering tomanufacturing. The DIN 931 standard covers sizes such as diameter and thread form. It also sets standards for material quality and accuracy. Complying wit