Qi Sheng self drilling screws feature a drill-point tip that can drill and fasten in one step, improving installation speed in many metal-to-metal and metal-to-structure applications. They are commonly used for sheet metal, steel frames, and roofing assemblies where productivity and consistent fastening are priorities.
We offer multiple head styles and sealing options depending on the application, with material and surface treatments to support corrosion resistance in demanding environments. OEM and wholesale buyers can source by specification and receive consistent bulk supply.
For accurate quoting, share the base material thickness, screw size, head type, finish, and quantity.

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Hex Head Roofing Screw Self-drilling Screw

High quality Hex Head Roofing Screw Self-drilling Screw is offered by China manufacturer Qi Sheng.

Roofing Screw Hex Head Drilling Screw

  1. Complies with ISO 14583, DIN 7504, ANSI B14.5; specialized roofing fasteners
  2. Material: Carbon steel, stainless steel (304/316), galvanized steel; strength grades 4.8–8.8
  3. Structure: Hex head + drill tip + self-tapping thread + optional EPDM waterproof washer
  4. Surface treatments: Hot-dip galvanizing, electroplating, ceramic coating
  5. Size M2.2–M6.3, length 16–50mm.
  6. Adapts to metal sheets, wood purlins, concrete substrates