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

DIN 931 defines the requirements for hexagonal head screws. These fixings are commonly used in numerous applications, from structural engineering toassembly. The DIN 931 standard covers parameters such as diameter and thread pitch. It also sets criteria for material composition and tolerances. Complying with DIN 931 ensures durable connections an