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 civil applications. The standard outlines procedures for the design, fabrication, inspection, and testing of bolted assemblies to ensure t

DIN 931 specifies the requirements for six-sided head screws. These fixings are widely employed in diverse fields, from automotive engineering tomanufacturing. The DIN 931 standard covers dimensions such as length and thread type. It also establishes standards for material quality and precision. F