Simpson 10d - 3" Wood Siding Nail in Type 316 Stainless Steel is an exterior fastener engineered by Simpson Strong-Tie for securing wood siding panels with reliable, long-lasting holding power. Built from Type 316 stainless steel, this nail is purpose-built for demanding outdoor environments - including coastal and seaside exposures - where superior corrosion resistance is critical. The annular ring shank and checkered full round head work together to deliver exceptional withdrawal resistance and pull-through resistance, making this nail a trusted choice for professional siding installation projects.

Key Features

• Type 316 Stainless Steel material - delivers superior corrosion resistance for seaside applications, high-moisture environments, and long-term exterior exposure where standard steel fasteners would degrade
• Annular-ring shank design - dramatically increases withdrawal resistance compared to smooth-shank nails, reducing cupping of siding boards and keeping panels securely fastened over time
• Checkered full round head pattern - blends with wood grain texture, reduces glare from sunlight, and accepts surface finishes so nail heads are less visible after installation
• Diamond point tip - allows for easier driving into wood siding panels, reducing installer effort and minimizing the risk of splitting
• 12-gauge wire at 0.113" shank diameter - provides the structural thickness needed for dependable pull-through resistance in wood siding applications
• 3" length / 10d penny size - sized appropriately for penetrating wood siding panels and achieving adequate embedment into substrate framing
• 7/32" head diameter - large enough to distribute load and resist pull-through while remaining low-profile against the siding surface
• Made in the United States - manufactured domestically to consistent quality standards by Simpson Strong-Tie

Why This Product

• Built for coastal and harsh outdoor conditions - Type 316 stainless steel offers a higher tier of corrosion resistance than standard 304 stainless or galvanized options, making these nails the right choice for seaside homes, wet climates, and projects where long-term exterior performance is non-negotiable
• Holds siding panels flat and secure over time - the annular ring shank mechanically locks into wood fibers to resist withdrawal forces that cause boards to warp, cup, or pull away from sheathing - a common failure point with smooth-shank alternatives
• Designed to disappear into the finished surface - the checkered head pattern mimics wood grain and accepts paint or stain, so the fastener blends into the siding rather than standing out as a visible metal dot
• A purpose-built fastener from a trusted structural hardware brand - Simpson Strong-Tie developed this nail specifically for wood siding fastening, offering both excellent holding power and pull-through resistance in a single fastener designed for the application

Specifications

• Brand: Simpson Strong-Tie
• Penny Size: 10d
• Length: 3 in.
• Gauge: 12
• Shank Diameter: 0.113 in.
• Shank Type: Annular-Ring Shank
• Head Diameter: 7/32 in.
• Head Type: Full Round Head
• Head Pattern: Checkered
• Point Type: Diamond Point
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Approx. Count Per Lb: 120
• Country of Origin: United States

Available Pack Options

• T10SND1: 1 Lb (120)
• T10SND5: 5 Lb (600)
• T10SNDB: 25 Lb (3000)

Approved Applications

• Fastening Wood Siding

Frequently Asked Questions

Why is Type 316 stainless steel recommended for wood siding nails?

Type 316 stainless steel provides superior corrosion resistance compared to standard stainless or galvanized finishes. It is particularly well-suited for seaside and coastal applications where salt air and moisture can accelerate corrosion in lesser materials, helping the fasteners and the siding they secure last for the long term.

What advantage does an annular-ring shank provide over a smooth-shank nail in siding applications?

The annular ring shank mechanically bites into the wood fibers as the nail is driven, creating significantly increased withdrawal resistance compared to a smooth shank. In wood siding applications, this means boards are held more firmly against the substrate, reducing the likelihood of cupping, warping, or the nail pulling free over time.

Why does the checkered head pattern matter for a wood siding nail?

The checkered pattern on the full round head is designed to blend with natural wood grain, reduce glare from direct sunlight, and accept surface finishes such as paint or stain. This allows the nail head to become less visually prominent after installation, contributing to a cleaner finished appearance on the siding surface.

Is a diamond point tip easier to drive than other point types?

Yes - the diamond point on this nail is designed for easier driving into wood siding panels. It concentrates force at the tip to start the nail cleanly and reduce the effort required to drive it through the siding material, which is especially useful when fastening multiple panels on a large project.