DIN7504K standard definition of hexagon socket head drilling and tapping screws is a high-strength self-drilling self-tapping screws, which is characterized by the design of having a hexagon head and a drilling tail, so that the screws are able to drill and tap their own holes when screwed in, which greatly improves the efficiency of construction.
Carbon Steel: Typically used for general applications.
Stainless Steel: For environments where corrosion resistance is required.
Alloy Steels: Used in applications requiring high strength or high temperature resistance.
Advantage:
Self-drilling and self-tapping: The drill-tail design allows screws to be drilled and threaded directly into the material without the need for pre-drilling or tapping, simplifying construction steps. Hexagon Head: Provides a wide bearing surface, making tightening and loosening operations easier, and can withstand higher torque. High-strength materials: usually made of carbon steel or stainless steel, ensuring the strength and durability of the screws for a variety of harsh environments. Corrosion-resistant surface treatment: such as zinc plating or Dacromet surface treatment, which enhances the corrosion resistance of the screws, suitable for outdoor or wet environment. PRECISE DIMENSIONS: According to DIN7504K standard, the dimensions and thread specifications of these screws are precisely defined, ensuring interchangeability and reliability.
Scope of Application
Steel structure building: for fixing color steel tiles, metal roofs and walls, and other steel structure connections. Metal plate connection: for the connection and fixing of various metal plates, such as steel plates, aluminum plates, etc. Equipment installation: for fixing machine parts or structural components during the installation of machinery and equipment. Outdoor signs and billboards: used for fixing outdoor signs, billboards and other structures without worrying about the screws being corroded or damaged by environmental factors. Repair and Maintenance: Used to replace or reinforce structural components during repair and maintenance work, providing fast and reliable connections.
Quality Certification
Hebei Bentley is ISO9001:2015 certified and equipped with relevant certificates for quality assurance. Due to its specific dimensions and performance levels, it is suitable for a wide range of industrial and commercial scenarios including, but not limited to: machine building, construction work, transport, energy industry, timber frame connections.
Quality inspection
Bentley has invested a huge amount of money to builda product testing laboratory, equipped with importedhigh-end instruments:such as thread comprehensivescanners, high temperature tensile testing machines,high frequency fatigue testing machines, etc., to ensurethat all products are strictly tested before leaving thewarehouse to ensure the reliability of customers duringuse.