Carriage bolts possess a unique design with a squared shank that locks within the hole, preventing rotation and providing a secure fastening. These bolts consist 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 f

DIN 931 outlines the specifications for hexagonal head screws. These bolts are commonly used in numerous industries, from automotive engineering toconstruction. The DIN 931 standard covers sizes such as head size and thread form. It also establishes requirements for material composition and accuracy. Adhering to DIN 931 ensures durable connection