Self-Drilling Screws

Self-Drilling Screws & Fasteners

We offer a world-class range of roofing accessories, including self-drilling screws, washers, and stitching fasteners. Our products are engineered to meet the unique needs of various roofing materials and structures, ensuring a secure and long-lasting installation.

Features of WAW ROOF Self-Drilling Screws

Compliant with SAE J78-2013 ANSI quality control standards.

Safe Sealing & Long Life

Hex washer head assembled with high-quality EPDM washer ensures a waterproof seal.

Faster Drilling Speed

Engineered drill point for fast and stable performance, reducing installation time.

Hardened for Strength

Made from C-1022 carbon steel and surface hardened for maximum durability.

Our Fastener Range

Stitching Fastener

Stitching Fastener (Needle Point)

Use: To fasten two overlapping roofing sheets to each other.

Plating: Unique co-polymer rust shield coating for superior resistance (ASTMB117 & AS3566 compliant).

CR Series Fastener

CR Series Fasteners (Drill Tip Point)

Use: For crest fixing of roofing sheets to structural steel or secondary substrates like cold-rolled purlins up to 4mm thick.

HR Series Fastener

HR Series Fasteners

Application: For crest fixing roofing sheets to thicker secondary substrates like square pipes or angles up to 8mm thick.

Coating: Unique co-polymer rust shield coating tested to ASTM B117 & AS 3566.

EPDM Washers

The Importance of Quality Washers

Though small, a high-quality washer is essential to any roofing system. Poor quality washers can lead to leaks and costly damage.

  • Material: Our premium EPDM washers are blended with Ozone and UV stabilizers for superior sealing and UV resistance.
  • Conductivity: Black EPDM washers offer superior performance and are fully compatible with color-coated and Zincalume steels.

Frequently Asked Questions

What are self-drilling roofing screws?

They are specialized screws with a drill-like tip that create their own holes, eliminating the need for pre-drilling and making installation faster.

What materials can these screws be used with?

Our self-drilling screws are versatile and can be used with a wide range of materials, including metal sheets, asphalt, fiberglass shingles, decking, and insulation.

Can self-drilling screws be reused?

No, they are designed for single use. Reusing screws can compromise their holding power and increase the risk of leaks or other damage to the roof.