20" #15 extra heavy-duty roofing fasteners (250/box)
These extra heavy-duty #15 self-drilling roofing fasteners are designed for securing roofing assemblies and insulation/plates to compatible roof decks. The 20-inch length supports thick roof builds, while the corrosion-resistant coating helps protect performance in demanding rooftop environments.
Key Features:
- Extra Heavy-Duty Holding Power: Oversized heavy shank and deep buttress threads are designed to increase pullout and backout resistance
- Self-Drilling Point: Mini drill point penetrates compatible decks quickly without predrilling
- Corrosion-Resistant Coating: CR-10 coating is designed to resist red rust and exceeds FM Approval Standard 4470 (per published product data)
- Long-Length Roof Build Support: 20-inch fasteners accommodate thicker roofing/insulation assemblies
- Bulk Box Quantity: Supplied 250 fasteners per box for jobsite efficiency
Specifications Table:
| Specification | Details |
| Fastener size | #15 |
| Fastener length | 20 in. |
| Point type | Self-drilling |
| Head style | #3 Phillips truss head |
| Thread length | 4 in. (102 mm) |
| Thread diameter | .265 in. (6.73 mm) |
| Head diameter | .435 in. (11.04 mm) |
| Coating | CR-10 corrosion resistant coating (less than 15% red rust after 30 Kesternich cycles; exceeds FM Approval Standard 4470 per published data) |
| Packaging quantity | 250 per box |
| Unit of measure | Box (BX) |
| Box weight | 45 lb |
Frequently Asked Questions (FAQ):
Q: How many fasteners are included?
A: 250 fasteners per box.
Q: What drive/head style do these fasteners use?
A: #3 Phillips truss head (bit included per published product data).
Q: Are these self-drilling?
A: Yesthese are self-drilling roofing fasteners.
Q: What roof decks are these intended for?
A: Published application data lists use for certain light-gauge steel, OSB/plywood, and aluminum roof decks; follow project specifications and manufacturer requirements.
Q: What is the minimum required penetration?
A: Published guidance indicates 3/4 in. minimum penetration for steel/aluminum and OSB/plywood, and 1 in. minimum embedment for wood plank decks (verify per system approval and local requirements).
The Hidden Backbone of a Flawless Roofline
Theres a quiet luxury in infrastructure you never seebut always feel. These extra heavy-duty, self-drilling fasteners bring a confident, engineered grip to high-build roofing assemblies, anchoring layers with a clean, purposeful precision. Pair them with approved plates and a disciplined fastening pattern for a finish that reads seamless from the street and performs brilliantly up close. Its the kind of behind-the-scenes rigor that makes a space feel truly elevated.
Choose these 20-inch extra heavy-duty roofing fasteners to secure thick roof assemblies with dependable self-drilling performance and corrosion-resistant protection.
