This document, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It deals with a wide range of bolted joints used in engineering applications. The standard establishes methods for the design, production, inspection, and testing of bolted assemblies to ensure their reliability. It also specifies the elements tha

DIN 931 defines the specifications for hexagonal head screws. These nuts are frequently utilized in various industries, from mechanical engineering toconstruction. The DIN 931 standard covers dimensions such as head size and thread type. It also defines standards for material quality and accuracy. Following DIN 931 ensures robust connections and