Simpson 3-inch 10d Smooth Shank Common Nail in 316 Stainless Steel is a 9-gauge fastener engineered for decking, permanent wood foundations, and general wood construction where corrosion resistance and long-term holding strength are critical. The smooth shank design makes these nails versatile across a broad range of framing and structural applications, while the Type 316 stainless steel composition delivers exceptional performance in coastal, marine, and chemically demanding environments where standard fasteners would quickly degrade.

Key Features

• Type 316 stainless steel construction - provides superior corrosion resistance compared to standard stainless grades, making these nails the right choice for seaside structures, docks, and high-moisture environments where oxidation would compromise fastener integrity.
• 10d penny size, 3-inch length - a standard framing and decking nail dimension that delivers solid penetration depth and reliable holding power in common wood construction assemblies.
• 9-gauge shank, 0.148-inch shank diameter - a robust wire gauge that balances driving ease with structural holding performance across dimensional lumber and decking boards.
• Full round head with smooth head pattern - maximizes bearing surface against the wood face for a flush, clean finish and consistent seating in decking and framing connections.
• Diamond point tip - promotes accurate nail placement and reduces wood splitting during installation, especially important when working close to board edges.
• 5/16-inch head diameter - provides a broad bearing surface that distributes load across the wood face and reduces pull-through risk in structural connections.
• Made in the United States - domestic manufacturing supports consistent quality control and traceability for construction projects with domestic sourcing requirements.

Why This Product

• Built for the harshest outdoor environments - Type 316 stainless steel resists saltwater, chlorides, and chemical exposure better than 304 stainless steel or galvanized alternatives, making it the preferred fastener for coastal construction, waterfront decks, and marine-adjacent structures where fastener failure is not an option.
• Meets recommendations for permanent wood foundations - stainless steel nails like these align with the ANSI/AWC Permanent Wood Foundations Design Specifications, giving builders confidence that their fastener selection meets recognized industry standards for long-term structural use.
• Trusted Simpson brand quality - Simpson Strong-Tie is a well-established name in structural fasteners and connectors, and these nails are manufactured to the same standard of precision that contractors rely on for load-bearing construction details.
• Smooth shank versatility for a wide range of applications - unlike specialty ring-shank or screw-shank nails, the smooth shank design is compatible with a broad range of wood construction tasks, from decking installation to general framing, giving contractors a single nail they can reach for across multiple job-site tasks.

Specifications

• Brand: Simpson Strong-Tie
• Nail Type: Common Nail
• Penny Size: 10d
• Length: 3 in.
• Gauge: 9
• Shank Diameter: 0.148 in.
• Shank Type: Smooth Shank
• Head Type: Full Round Head
• Head Diameter: 5/16 in.
• Head Pattern: Smooth Head
• Point Type: Diamond Point
• Material: Type 316 Stainless Steel
• Approx. Count per Lb.: 67
• Country of Origin: United States

Available Pack Options

• T10CN1: 1 Lb (67)
• T10CN5: 5 Lb (335)
• T10CNB: 25 Lb (1675)

Frequently Asked Questions

What is the difference between Type 316 and Type 304 stainless steel nails, and when should I choose 316?

Type 316 stainless steel contains molybdenum, which significantly enhances its resistance to chlorides, saltwater, and certain chemicals compared to Type 304. Choose Type 316 when installing decking, framing, or foundations in coastal, marine, or high-humidity environments where exposure to salt air or moisture is ongoing. For inland applications with lower corrosion risk, 304 stainless may be sufficient, but 316 is the more protective option in demanding conditions.

Are these nails suitable for use in permanent wood foundations?

Yes. Stainless steel nails are recommended for permanent wood foundation construction in accordance with the ANSI/AWC Permanent Wood Foundations Design Specifications. The Type 316 stainless steel used in these nails provides the corrosion resistance needed for long-term below-grade and ground-contact applications where fastener durability is essential.

What does the smooth shank mean for nail performance compared to a ring shank?

A smooth shank nail drives easily and consistently, making it well-suited for a wide variety of general wood construction and decking tasks. Ring-shank nails offer higher withdrawal resistance - meaning they are harder to pull back out - but a smooth shank nail remains the standard choice for common framing and decking applications where driving efficiency and versatility are priorities.

How many of these nails are there per pound?

There are approximately 67 nails per pound. This count can help you estimate how many pounds you will need for a given project based on your planned nail quantity. Keep in mind that actual count may vary slightly due to manufacturing tolerances.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.