Carriage bolts possess a unique design with a squared shank that locks within the hole, preventing rotation and guaranteeing a secure fastening. These bolts include a cylindrical head with a square or hexagonal recess, formulated to be driven by a wrench or socket. DIN 603 carriage bolts conform with the stringent standards set by the German Instit

This specification, EN 14399:2005, defines the criteria for high-strength structural bolted assemblies. It addresses a comprehensive range of bolted connections used in structural applications. The standard provides procedures for the design, manufacture, inspection, and testing of bolted assemblies to ensure their reliability. It also specifies th

DIN 931 specifies the requirements for six-sided head screws. These nuts are commonly used in various industries, from mechanical engineering toassembly. The DIN 931 standard covers sizes such as diameter and thread form. It also defines standards for material quality and precision. Adhering to DIN 931 ensures robust connections and improves the