This document, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It covers a comprehensive range of bolted connections used in engineering applications. The standard provides methods for the design, production, inspection, and testing of bolted assemblies to ensure their performance. It also specifies the mater

DIN 931 defines the standards for hexagonal head bolts. These nuts are frequently utilized in diverse fields, from automotive engineering toassembly. The DIN 931 standard covers parameters such as diameter and thread type. It also establishes requirements for material grade and tolerances. Adhering to DIN 931 ensures durable connections and boost