Carriage bolts feature a unique design with a squared shank that stabilizes within the hole, preventing rotation and guaranteeing a secure fastening. These bolts include 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 f… Read More


DIN 931 defines the specifications for hexagonal head bolts. These nuts are commonly used in numerous applications, from automotive engineering tomanufacturing. The DIN 931 standard covers sizes such as head size and thread form. It also establishes standards for material grade and accuracy. Adhering to DIN 931 ensures robust connections and impr… Read More