GAF Drill-Tec 5" Purlin Fasteners (#3 Square Head)

Heavy-duty Drill-Tec Purlin Fasteners secure single-ply membranes to 12–18 gauge steel purlins in standing seam metal roof retrofits. Featuring a corrosion-resistant CR-10 coating and a #3 square head, they deliver reliable performance in demanding commercial roofing applications.

Key Features:

• Purpose-Built for Retrofits: Attaches single-ply membranes to 12–18 ga. structural steel purlins
• Corrosion Resistance: Drill-Tec CR-10 coating for long-lasting durability
• Head Style #3 Square: Positive drive and reduced cam-out for consistent installation
• 5-Inch Length: Sized for common purlin fastening needs in metal roof systems
• Bulk Pack Efficiency: Box of 500 fasteners for large projects

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What materials are these fasteners designed for?
A: They are designed to attach single-ply membrane systems to 12–18 gauge structural steel purlins in standing seam metal roof retrofit applications.

Q: What is the length of each fastener?
A: Each fastener is 5 inches long.

Q: Do they have corrosion protection?
A: Yes. They feature Drill-Tec CR-10 corrosion-resistant coating.

Q: What approvals do these fasteners have?
A: They are FM Approved and Miami-Dade County Approved.

Q: How are they packaged?
A: They are packaged in a box of 500 (UOM: CTN).

Industrial Precision With Rugged Poise

These streamlined fasteners bring a tailored, architectural rigor to retrofit metal roofing—sleek, graphite-toned, and purpose-built. The #3 square head offers a crisp, utilitarian detail that feels both engineered and elegant. Style them with matte black accessories and standing seam profiles to create a cohesive, contemporary roofscape. Essential hardware that quietly underwrites a narrative of durability and modern luxury.

Choose Drill-Tec Purlin Fasteners for corrosion-resistant, code-approved performance on your next metal roof retrofit.