High quality white plated DIN 7504K corrugated screws Concrete screws DIN 7504K white plated Material: Carbon Steel Produce according to customer requirements The 7504K screw structure consists of 3 parts: Screw part: Designed in the form of a drill, the head is in direct contact with the surface Threaded body: Threaded screw body for twisting deep into wood or concrete surfaces Drill head: Designed in the form of a hexagon, with this head requires a specialized machine to be able to use the screw quickly and accurately. DIN 7504K corrugated screws white plated Material: Carbon Steel Produce according to customer requirements The 7504K screw structure consists of 3 parts: Screw part: Designed in the form of a drill, the head is in direct contact with the surface Threaded body: Threaded screw body for twisting deep into wood or concrete surfaces Drill head: Designed in the form of a hexagon, with this head requires a specialized machine to be able to use the screw quickly and accurately.