Carriage bolts are a unique design with a squared shank that remains within the hole, preventing rotation and providing a secure fastening. These bolts consist 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 for St

DIN 931 defines the standards for Hex Head Bolt DIN 931 six-sided head bolts. These fixings are commonly used in numerous industries, 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 precision. Following DIN 931 ensures robust c