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

DIN 931 outlines the requirements for six-sided head screws. These nuts are commonly used in diverse applications, from automotive engineering tomanufacturing. The DIN 931 standard covers sizes such as diameter and thread form. It also establishes standards for material composition and tolerances. Complying with DIN 931 ensures durable connection