This specification, EN 14399:2005, defines the specifications for high-strength structural bolted assemblies. It addresses a wide range of bolted connections used in civil applications. The standard establishes methods for the design, manufacture, inspection, and testing of bolted assemblies to ensu

DIN 931 defines the specifications for six-sided head screws. These fixings are commonly used in various industries, from structural engineering tomanufacturing. The DIN 931 standard covers dimensions such as diameter and thread type. It also establishes criteria for material composition and tolera