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 adhere to the stringent standards set by the German Institute for

DIN 931 defines the specifications for hexagonal head fasteners. These fixings are widely employed in diverse applications, from mechanical engineering tomanufacturing. The DIN 931 standard covers sizes such as head size and thread pitch. It also sets standards for material composition and precision. Adhering to DIN 931 ensures robust connections