Bolt with enlarged semicircular head and square neck GOST-7802-81 accuracy class C

Bolts GOST–7802–81 DIN 603 on the one hand have an enlarged semicircular flat head with a square headrest, on the other hand, a metal rod with a thread along the entire length. The fastener is made of steel and stainless steel. Can be galvanized or uncoated. Thanks to the headrest, it is firmly fixed in the fastened part, leaving no possibility of scrolling the rod.Bolt GOST–7802–81 DIN 603 cannot be deformed without destroying the head, so it is a reliable anti-vandal tool. The part is used mainly in furniture production for fastening metal or wooden structures. Fasteners are also used in the installation of bridge structures.