HEXAGONAL HEAD BOLTS - DIN 558

DIN 558 specifies medium-threaded hexagon head bolts, a common type of fastener used in various applications. These bolts feature a hexagonal head for easy tightening with wrenches and are known for their high strength and durability. The DIN standard defines the bolt's dimensions, including length, diameter, thread pitch, and material composition,

DIN 6921 outlines the specifications for hexagon flange bolts in metric sizes. These fasteners are commonly used in a wide range of applications, including construction, due to their high strength and reliable clamping force. The standard defines dimensional parameters such as thread diameter, bolt length, head size, and flange dimensions. Adherenc