Simpson 10d 0.148 x 3" Preservative-Treated Wood Decking Nail in Type 316 Stainless Steel is engineered by Simpson Strong-Tie for demanding deck and dock construction where moisture, salt air, and chemical exposure are constant concerns. Built with an annular-ring shank and full round head, this exterior fastener delivers a corrosion-resistant, high-withdrawal-resistance connection in both green and seasoned preservative-treated pine - giving outdoor living spaces the same long-term durability expected from interior construction.

Key Features

• Type 316 Stainless Steel material - provides superior corrosion resistance in saltwater, coastal, and chemically treated wood environments where standard fasteners would corrode and fail prematurely.
• Annular-ring shank - dramatically increases withdrawal resistance to help prevent nail heads from popping up over time, extending the life of decking and dock surfaces.
• Larger 0.148" shank diameter (9 gauge) - allows for smooth, controlled driving into both green and seasoned preservative-treated pine without splitting the wood.
• Diamond point tip - makes starting and driving each nail easier, reducing installer effort and minimizing wood splitting during installation.
• Full round head with checkered pattern - the 5/16" head seats flush and securely while the checkered surface blends with wood grain and reduces sunlight glare for a cleaner finished appearance.
• 10d penny size, 3" length - sized specifically for standard decking boards, providing the right penetration depth for a structurally sound connection.
• Made in the United States - manufactured domestically to consistent quality standards for professional and DIY deck builders alike.

Why This Product

• Purpose-built for pressure-treated wood applications - Type 316 stainless steel resists the corrosive chemicals found in modern preservative-treated lumber, which can rapidly degrade standard galvanized or zinc-coated fasteners, making this nail the right choice for treated pine decks and docks.
• Ideal for seaside and high-humidity environments - the 316 stainless steel alloy is specifically suited to coastal applications where saltwater spray and high humidity demand the highest level of corrosion protection available in a fastener.
• Annular-ring shank combats deck board movement - seasonal expansion, contraction, and moisture cycling cause decking nails to work loose over time; the ring shank design mechanically locks into wood fibers to resist that movement far better than a smooth shank nail.
• From a trusted structural fastener brand - Simpson Strong-Tie's broad range of engineered fasteners means this decking nail is designed as part of a complete system for exterior structural applications, not as a general-purpose substitute.

Specifications

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

Available Pack Options

• T10HPTD1: 1 Lb (67)
• T10HPTD5: 5 Lb (335)
• T10HPTDB: 25 Lb (1675)

Approved Applications

• Deck construction with preservative-treated pine decking boards
• Dock construction in freshwater and marine environments
• Exterior structural fastening in green or seasoned pressure-treated lumber
• Coastal and seaside outdoor projects requiring high corrosion resistance

Frequently Asked Questions

Why is Type 316 stainless steel recommended for decks built with preservative-treated wood?

Modern preservative-treated lumber contains chemicals that can accelerate corrosion in standard fasteners. Type 316 stainless steel resists these chemicals as well as moisture and salt exposure, making it the appropriate choice for treated pine deck and dock projects - especially in coastal or high-humidity environments.

What advantage does the annular-ring shank provide over a smooth shank nail?

The annular-ring shank mechanically engages with the wood fibers along the entire length of the nail, increasing withdrawal resistance significantly compared to a smooth shank. This helps prevent nail heads from backing out or popping up over time as decking boards expand and contract with seasonal moisture changes.

Can this nail be driven into green (freshly treated, wet) lumber as well as seasoned lumber?

Yes. The 0.148" shank diameter is specifically sized to allow easy penetration into both green and seasoned preservative-treated pine, so installation is not limited to dry or kiln-dried material.

What does the checkered head pattern on this decking nail do?

The checkered pattern on the full round head serves two practical purposes: it blends with the natural wood grain for a cleaner appearance once installed, and it reduces glare from direct sunlight - both desirable qualities on an exterior deck surface.

Note: Product dimensions may differ from picture.