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National Nail Heavy Duty Felt Staples, 3/8 in. Mill, 5M Box
Regular price $16.05Orders start at $399 — combine any items to reach the minimum. Learn more
National Nail Heavy Duty Felt Staples, 3/8 in. Mill, 5M Box
These National Nail heavy duty felt staples come in a 5,000-count box with a mill finish and a 3/8 in. size. They fit most Duo-Fast, Bea, Fasco, Grex and Spotnails hammer tackers. Use them for fastening felt, underlayment and similar sheet materials before shingle installation.
Key Features:
- Heavy duty: Heavy duty staples designed for fastening felt and underlayment.
- 5,000 per box: Sold in a box containing 5M (5,000) staples.
- 3/8 inch size: 3/8 in. leg length for securing felt sheets.
- Mill finish: Supplied in a mill (uncoated) finish.
- Broad tool fit: Fits most Duo-Fast, Bea, Fasco, Grex and Spotnails hammer tackers.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | National Nail |
| Sell unit | 1 box, 5,000 staples |
| Available colors | Mill |
| Available sizes | 3/8 in., 5M box |
| Material | Steel |
| Finish / texture | Mill finish |
| Nominal size | 3/8 in. |
| Pack quantity | 5,000 staples (5M) |
| Intended use | Fastening felt and underlayment with a hammer tacker |
Fit and Compatibility:
Fits most Duo-Fast, Bea, Fasco, Grex and Spotnails hammer tackers. Not rated for pneumatic framing or finish nailers.
Frequently Asked Questions (FAQ):
Q: How many staples come in a box?
A: The box contains 5,000 staples (5M).
Q: What size are they?
A: 3/8 inch, in a mill finish.
Q: Which hammer tackers do they fit?
A: They fit most Duo-Fast, Bea, Fasco, Grex and Spotnails hammer tackers.
Q: What are they used for?
A: Fastening felt and underlayment, typically before shingle installation.
Q: Are they galvanized?
A: No, this item is listed in a mill finish.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Staple spacing on underlayment is dictated by the shingle manufacturer's fastening pattern, not the staple itself, so keep a few boxes on hand per crew per roof. Verify leg length against the thickness of the felt you are running; thicker underlayments may need a longer fastener. Always confirm your hammer tacker model against the listed compatible brands before bulk ordering.
Staple points are sharp; keep fingers clear of the hammer tacker crown and wear eye protection when driving staples.
Stock up on National Nail 3/8 in. heavy duty felt staples in a 5,000-count box for your next underlayment job.
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