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

This specification, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It addresses a wide range of bolted joints used in civil applications. The standard provides procedures for the design, production, inspection, and testing of bolted assemblies to ensure their safety. It also specifies the components that can

DIN 931 specifies the requirements for six-sided head bolts. These fixings are frequently utilized in various industries, from structural engineering toconstruction. The DIN 931 standard covers sizes such as diameter and thread form. It also defines standards for material quality and accuracy. Adhering to DIN 931 ensures durable connections and i