This document, EN 14399:2005, defines the criteria for high-strength structural bolted assemblies. It addresses a comprehensive range of bolted connections used in civil applications. The standard establishes guidelines for the design, production, inspection, and testing of bolted assemblies to ensure their reliability. It also specifies the compon

DIN 931 outlines the specifications for six-sided head screws. These bolts are commonly used in various industries, from automotive engineering toconstruction. The DIN 931 standard covers dimensions such as diameter and thread pitch. It also sets standards for material quality and tolerances. Complying with DIN 931 ensures robust connections and