Carriage bolts possess a unique design with a squared shank that remains within the hole, preventing rotation and ensuring 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 adhere to the stringent standards set by the German Institute fo

DIN 931 specifies the standards for hexagonal head screws. These nuts are widely employed in various industries, from automotive engineering tomanufacturing. The DIN 931 standard covers dimensions such as diameter and thread type. It also sets criteria for material quality and accuracy. Complying with DIN 931 ensures durable connections and impro