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PrimeSource 2-1/2 in. Square Metal Cap Nails, 50 lb. Carton
Regular price $141.95Orders start at $399 — combine any items to reach the minimum. Learn more
PrimeSource 2-1/2 in. Square Metal Cap Nails, 50 lb. Carton
PrimeSource 2-1/2 in. square metal cap nails ship in a 50 lb. carton for fastening underlayments, felt and building papers. The metal cap distributes holding power across a wide head to reduce tear-through. Order one carton per unit; nail guns and foam board fastening accessories are sold separately.
Key Features:
- Wide metal cap: The 2-1/2 in. nail is topped with a square metal cap that spreads the fastening load over a larger area.
- Bulk carton: Supplied as a 50 lb. carton sized for full roofing jobs rather than single-bucket purchases.
- Tear-through resistance: The cap head helps hold felt, underlayment and insulation without pulling through the material.
- Roofing workhorse: A standard choice for temporarily or permanently fastening roofing underlayments and papers.
- Contractor quantity: Sold by weight so crews can keep fastening without frequent restocking.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | PrimeSource |
| Sell unit | 50 lb. carton |
| Product line | PrimeSource cap nails |
| Profile / style | Square metal cap nail |
| Dimensions | 2-1/2 in. nail length with square metal cap |
| Material | Steel with metal cap |
| Weight | 50 lb. per carton |
| Intended use | Fastening roofing underlayment, felt and building papers |
Fit and Compatibility:
Use with standard cap-nail hand driving or compatible cap nailers; underlayments, foams and fastening tools are sold separately. Confirm fastener compatibility with the underlayment manufacturer before installation.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 50 lb. carton of 2-1/2 in. square metal cap nails; no tools or caps are included separately since the caps are attached to the nails.
Q: How many nails are in a carton?
A: The count is not published; the carton is sold by weight at 50 lb.
Q: What are these used for?
A: They are commonly used to fasten roofing underlayment, felt and building papers where a wide head resists tear-through.
Q: Will they rust?
A: The sources do not state a coating or corrosion-resistance rating, so this is not specified.
Q: Do they work in a cap nailer?
A: Confirm tool compatibility with your nailer model; the sources do not list tool specifications.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Cap nails are the fast way to hold underlayment against wind uplift between fastening rounds; the wide metal cap is far gentler on felt and synthetic sheets than common nails. Keep a carton on the roof for tear-off and dry-in days, and always follow the underlayment manufacturer's fastening pattern, which typically specifies cap spacing along laps and in high-wind zones.
Wear gloves and eye protection when handling and driving cap nails; the metal caps and sharp points can cut skin.
Stock your next dry-in with PrimeSource 2-1/2 in. square metal cap nails in a 50 lb. carton.
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