Carriage bolts feature a unique design with a squared shank that stabilizes within the hole, preventing rotation and ensuring a secure fastening. These bolts comprise 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

DIN 931 outlines the requirements for hexagonal head screws. These fixings are widely employed in various applications, from automotive engineering toconstruction. The DIN 931 standard covers dimensions such as diameter and thread type. It also defines criteria for material grade and precision. Adhering to DIN 931 ensures robust connections and i