factory direct supply din7504k hex flange self-tapping self-drilling screws with epdm gasket fastener

Product Information

• Specifications and DimensionsCommon sizes include ST3.5-ST6.3 and more, with lengths ranging from 13mm to 200mm, for example, ST6.3-14*125 indicates a diameter of 6.3mm and a length of 125mm.
• Material and Surface TreatmentThe materials include steel C1022A and stainless steel 410, and the surface treatments include galvanizing, cleaning, and zinc phosphating.

Application field

• Metal Plate ConnectionIn the installation of metal panels such as metal curtain walls, metal partitions, and color steel sheet buildings, the self-tapping and self-drilling feature of DIN7504K with EPDM gaskets can quickly fix the metal panels together. The EPDM gasket serves a sealing and cushioning role, preventing rainwater, dust, and other contaminants from entering the connection, while reducing friction and vibration between the metal panels.
• Automobile manufacturingIn the assembly of the car body, especially when connecting metal sheets for the body shell, doors, hoods, etc., the screw provides good connecting and tightening force. The EPDM gasket helps improve the sealing and waterproofing of the connection, and also plays a certain role in damping and noise reduction, enhancing the overall quality and comfort of the car.
• Electronics shell installationFor the assembly of the shells of electronic devices such as computer cases, server cabinets, and electronic instruments, the use of DIN7504K with EPDM gaskets ensures the sealing of the shells, preventing dust and moisture from entering the device, which could affect the normal operation of the electronic components. It also ensures a stable connection of the shell.