2025.06.01 DD Fasteners :Wing-Type Drilling Screws with Countersunk Head

Engineered for professionals, these self-drilling screws are designed tocreate precise pilot holes through composite materials such as wood and light metal before seamlessly anchoring into steel substrates. The addition of wing elements ensures the upper material is effectively cleared, preventing material damage or thread stripping, while the countersunk head sits flush for a clean and stable surface finish.

Technical Specifications:

• Thread Diameter: M4.8 – M6.3 (#10 – #14)

• Length Range: 25mm – 150mm (1" – 6")

• Material Options:

  • Carbon Steel (C1022A) – Case-hardened for robust performance

  • Stainless Steel (SUS 304 / SUS 316) – For corrosion-critical environments

  • Bi-metal – For advanced strength-to-corrosion-resistance balance

• Surface Treatment Options:

  • Zinc Plated

  • Yellow Zinc

  • Black Zinc

  • Ruspert® Coating

  • Mechanical Galvanized

  • Custom coatings per OEM specifications

• Drive Style: Philips, Torx, or custom drive heads

• Standards Complied: DIN, ISO, IFI, or customer-specific drawings

• OEM Services: Custom thread, head types, material, length, and packaging options available

Performance Features:

• Integrated Wings: Facilitate smooth drilling through wood and composite panels by clearing the path before engaging the metal substrate

• Sharp Drill Point: Ensures quick penetration without the need for pre-drilling

• Flush Countersunk Head: Offers a neat finish with enhanced structural stability

• Excellent Pull-Out Resistance: Ideal for layered installations requiring lasting hold

• Versatile Compatibility: Effective with timber, steel sheets, aluminum frames, and insulated sandwich panels

Application Scenarios:

🔹 Roofing Construction:
Ideal for fastening sandwich panels and corrugated metal sheets onto steel frames or timber substrates. The screw’s self-drilling capability combined with flush countersunk finishing ensures both weather resistance and aesthetic alignment.

🔹 Cladding Installation:
Wing-type screws provide optimal fastening through layered materials such as wooden cladding boards and aluminum panels. Their ability to prevent over-torque and material splitting makes them a reliable solution for vertical and horizontal exterior applications.

🔹 Window Construction:
Used in securing window frames to wall structures, particularly where multiple layers of insulation or sheathing are involved. The countersunk head ensures an even profile for sealant application and enhanced waterproofing integrity.

Your Trusted OEM Partner

DD Fasteners supports full-scale OEM customization, delivering solutions tailored to meet the exacting requirements of global construction enterprises and fastener distributors. Whether it's non-standard dimensions, advanced coatings, or packaging solutions, we stand ready as your reliable partner in fastener innovation.

📩 To learn more or request a quotation, please visit www.ddfasteners.com,
📱 WhatsApp: +852 68409292
📧 Email: felixyung@ddfasteners.com

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