Countersunk head screw with drill bit DIN 7504 O

DIN 7504 O is a fastener consisting of a countersunk head with a flange, a threaded rod with a full length and a drill. The product is most often used for fastening sheet metal elements to soft materials. With the total thickness of the materials to be fastened up to 4 mm, the design of the hardware allows it to be used without a pre-prepared hole.

Fastening group DIN 7504O

     The DIN 7504 O self-tapping screw belongs to the stainless steel fastening group.

Materials of manufacture of DIN 7504O

     DIN 7504 O is available in the following materials:

• Steel, which can optionally be coated with zinc
• Stainless steel (A2, A4) does not need to be coated

Areas of application of DIN 7504O

     Hexagonal head drill screw DIN 7504 O - this screw is used for connecting several structural elements to profiles and sheets of metal. They do not require preliminary drilling of holes. Stainless hexagonal head screws for metal with an L-shaped head have a straight slot. If this fastener is equipped with a rubber gasket, it can be used as a roofing fastener. Since the gasket will protect the connection from the effects of adverse weather conditions, it will ensure tightness, reliability and durability of the structure. It is used in various industrial sectors, in construction, repair and installation processes, in mechanical engineering, during the assembly of metal structures, various installations, equipment, roofing, etc.

     In addition, the scope of application directly depends on the material of manufacture and coating of the product:

• Galvanized steel is a good protection against corrosion if the fastener is to be used in an aggressive environment.
• Stainless steel allows the fasteners to be used at significant temperature drops and in aggressive and humid environments.