2025.03.14 Self-Tapping Screws for Sandwich Panel Fixing – Precision, Strength, and Durability

Advanced Engineering for Maximum Performance

Designed to meet the highest industry standards, DD Fasteners' self-tapping screws provide exceptional holding power and long-lasting durability.

Key Product Features:

✅ Premium Hardened Carbon Steel for Strength & Reliability

• Manufactured from high-strength hardened carbon steel, ensuring exceptional tensile strength and resistance to mechanical stress.

✅ Precision-Engineered Drilling Point for Smooth Penetration

• The sharp and precise self-tapping point allows for effortless penetration into concrete and timber, eliminating the need for pre-drilling.

✅ High-Performance Hi-Lo Double Thread Design

• The Hi-Lo thread pattern enhances installation efficiency, providing superior grip, reduced driving torque, and optimized load distribution.

✅ Sealing Washer for Leak-Proof and Weather-Resistant Fixing

• Available in Ø16mm, Ø19mm, and Ø22mm, our aluminum/EPDM self-vulcanizing sealing washers ensure a secure and watertight connection, even in extreme weather conditions.

✅ Corrosion-Resistant Coatings for Enhanced Longevity

• Standard Zinc Plating (≥12µm): Ensures durability in C1–C2 corrosivity environments (EN ISO 12944-2).
• Powder Paint Coating (RAL Palette, max. 60µm): Allows usage in environments up to C3 corrosion category.
• Ruspert & Mechanical Galvanizing Options: Offer extended resistance in harsh and high-moisture conditions.

✅ Optimized for Professional Applications

• Designed for visible and hidden fastening on sandwich panels, ensuring aesthetic appeal and structural integrity.
• Compatible with an 8mm hex nutsetter for fast and reliable installation.
• Meets Class A1 fire resistance standards (EC 96/603/EC), making it a safe choice for high-demand applications.
  
  

Versatile Applications for Roofing & Construction

🔹 Fixing Sandwich Panels to Concrete & Timber – Provides a secure and vibration-resistant connection in heavy-duty building structures.
🔹 Visible and Hidden Fastening – Supports both surface-mounted and concealed fixing applications.
🔹 Ideal for Environments with C1–C3 Corrosivity Levels – Ensures long-term protection against rust and environmental wear.

Custom OEM Solutions for Your Project Needs

At DD Fasteners, we understand that every project has unique requirements. That’s why we offer OEM customization services, allowing clients to tailor fasteners to their specific applications. Customization options include:

✔ Various Head Types – Hex, Pan, Truss, or customized designs.
✔ Different Drive Systems – Hex, Phillips, Torx, and more.
✔ Wide Range of Washers – EPDM, Neoprene, or Bonded Washers for enhanced sealing.
✔ Tailored Surface Treatments – Zinc Plating, Ruspert Coating, or Mechanical Galvanizing.

Exclusive 2025 Promotional Offers – Contact Us Today!

To celebrate this high-performance fastening solution, DD Fasteners is offering special promotions throughout 2025. Contact us today to explore competitive pricing, bulk order discounts, and OEM customization services.

📌 Visit: www.ddfasteners.com
📌 WhatsApp: +852 68409292
📌 Email: felixyung@ddfasteners.com

DD Fasteners – Your Trusted Partner in Fastening Solutions.