Carriage bolts feature a unique design with a squared shank that remains within the hole, preventing rotation and providing a secure fastening. These bolts comprise a cylindrical head with a square or hexagonal recess, formulated 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 standards for hex head bolts. These bolts are widely employed in diverse applications, from mechanical engineering tomanufacturing. The DIN 931 standard covers parameters such as head size and thread pitch. It also sets requirements for material grade and accuracy. Adhering to DIN 931 ensures robust connections and improves th