This document, EN 14399:2005, defines the specifications for high-strength structural bolted assemblies. It deals with a wide range of bolted connections used in structural applications. The standard outlines methods for the design, manufacture, inspection, and testing of bolted assemblies to ensure their safety. It also specifies the components th

DIN 931 defines the specifications for hex head screws. These nuts are frequently utilized in diverse fields, from automotive engineering tomanufacturing. The DIN 931 standard covers parameters such as length and thread type. It also sets criteria for material quality and precision. Adhering to DIN 931 ensures durable connections and boosts the s