Skip to content
Grip-Rite 1-3/4 in. Grip-Cap Ring Shank Round Metal Cap Nails - 50 lb. Box
Regular price $154.08Orders start at $399 — combine any items to reach the minimum. Learn more
Grip-Rite 1-3/4 in. Grip-Cap Ring Shank Round Metal Cap Nails - 50 lb. Box
Grip-Rite Grip-Cap 1-3/4 in. ring shank round metal cap nails fasten thicker underlayments, insulation board and polyiso over wood decks. The round metal cap prevents pull-through and the ring shank locks the fastener in the deck. This 50 lb. box is the sell unit for high-volume roofing work.
Key Features:
- Longer 1-3/4 in. Shank: The 1-3/4 in. length reaches deeper decks and fastens over insulation board layers.
- Ring Shank Hold: Ring shank geometry delivers strong withdrawal resistance against wind uplift.
- Round Metal Cap: The round metal cap spreads the load and stops underlayment from pulling over the head.
- Bulk 50 lb. Box: Supplied as a 50 lb. bulk box for full-roof and commercial production work.
- Grip-Cap Line: Part of Grip-Rite's Grip-Cap cap-nail family for underlayment and board fastening.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Grip-Rite |
| Manufacturer model | 134MRCAP |
| Sell unit | 1 box, 50 lb. |
| Product line | Grip-Cap |
| Profile / style | Round metal cap, ring shank |
| Dimensions | 1-3/4 in. nail length |
| Material | Metal cap nail |
| Weight | 50 lb. per box |
| Intended use | Fastening underlayment and insulation board to wood decks |
Coverage & How Much You Need:
Coverage depends on the required fastener pattern; a typical underlayment pattern of about 3 fasteners per square yard means roughly 900 nails per roof square, so box coverage varies by specification.
Fit and Compatibility:
Suited to cap-nailing underlayment and insulation board over decks; Grip-Rite offers the same Grip-Cap design in 1-1/4 in. length for thinner layers. Tools and underlayment are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 50 lb. box of 1-3/4 in. Grip-Cap ring shank round metal cap nails.
Q: When should I choose the 1-3/4 in. length?
A: Choose it when fastening over insulation board or thicker material where the 1-1/4 in. nail cannot reach the deck properly.
Q: Why a metal cap?
A: The metal cap resists pull-through and holds underlayment flat against wind uplift.
Q: What spacing do I need?
A: Follow the underlayment manufacturer's fastener schedule and local code; spacing is often tighter at eaves, rakes and ridges.
Q: Can it fasten over polyiso?
A: Yes, the longer shank is commonly used when fastening through insulation board to the deck; verify total fastening depth.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Use the 1-3/4 in. length when nailing through rigid insulation or multiple underlayment layers so the ring shank embeds properly in the deck. Drive caps flush and follow the specified pattern, concentrating fasteners at edges and laps where uplift is greatest. For thin felt-only layers, the 1-1/4 in. Grip-Cap is usually sufficient and more economical.
Wear gloves and eye protection; nail points and cap edges are sharp, and mis-driven caps can ricochet.
Order the Grip-Rite 1-3/4 in. Grip-Cap ring shank metal cap nails in a 50 lb. box for deeper underlayment fastening.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
