Carriage bolts feature a unique design with a squared shank that stabilizes within the hole, preventing rotation and ensuring 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 meet the stringent standards set by the German Institute for S

DIN 931 specifies the requirements for hex head fasteners. These nuts are commonly used in diverse industries, from mechanical engineering toassembly. The DIN 931 standard covers sizes such as diameter and thread type. It also defines criteria for material composition and tolerances. Adhering to DIN 931 ensures reliable connections and improves t