This document, EN 14399:2005, defines the criteria for high-strength structural bolted assemblies. It deals with a wide range of bolted joints used in civil applications. The standard establishes procedures for the design, production, inspection, and testing of bolted assemblies to ensure their performance. It also specifies the materials that can

DIN 931 outlines the requirements for hexagonal head bolts. These bolts are commonly used in various applications, from structural engineering toassembly. The DIN 931 standard covers parameters such as head size and thread type. It also defines requirements for material quality and tolerances. Following DIN 931 ensures durable connections and boo