Simpson 10d 3-inch Wood Siding Nail in Type 304 Stainless Steel by Simpson Strong-Tie is engineered for exterior wood siding applications where lasting hold and corrosion resistance are critical. Featuring an annular-ring shank for superior withdrawal resistance and a checkered full round head that blends naturally with wood grain, these nails deliver reliable, long-term fastening performance in demanding outdoor environments. Built from 12-gauge Type 304 stainless steel and made in the United States, they are a trusted choice for securing wood siding panels where pull-through resistance and surface aesthetics both matter.

Key Features

• Type 304 Stainless Steel construction - provides strong corrosion resistance for exterior and outdoor siding applications, helping your installation remain secure and stain-free over time.
• Annular-ring shank - dramatically increases withdrawal resistance compared to smooth-shank nails, reducing cupping and movement in wood siding boards for a more stable, lasting attachment.
• Checkered full round head - the textured checker pattern blends with wood grain, reduces glare from sunlight, and accepts surface finishes so the fastener head disappears into the finished siding surface.
• Diamond point tip - makes it easier to start and drive the nail cleanly through wood siding material, reducing splitting and improving installation efficiency.
• 12-gauge, 3-inch length at 10d penny size - sized specifically for wood siding panels, delivering the depth and holding power needed for secure panel attachment.
• 7/32-inch head diameter - provides adequate bearing surface against the siding face without being so large that it becomes visually prominent after installation.

Why This Product

• Designed specifically for wood siding fastening - the combination of annular-ring shank, checkered head, and diamond point addresses the three most common challenges in wood siding installation: withdrawal resistance, surface appearance, and ease of driving.
• Corrosion-resistant stainless steel for outdoor exposure - Type 304 stainless steel holds up in exterior environments where standard steel nails would corrode, protecting both the fastener and the surrounding siding material from rust staining.
• Reduces board cupping over time - the annular-ring shank's enhanced grip helps lock siding boards in place, minimizing the board movement and warping that commonly occurs when nails work loose over years of weather cycling.
• Made in the United States by Simpson Strong-Tie - a manufacturer recognized for structural fastener quality, giving installers and contractors confidence that the fasteners meet the performance demands of exterior construction projects.

Specifications

• Brand: Simpson Strong-Tie
• Material / Finish: Type 304 Stainless Steel
• Gauge: 12
• Penny Size: 10d
• Length: 3 in.
• Head Diameter: 7/32 in.
• Head Type: Full Round Head
• Head Pattern: Checkered
• Shank Diameter: 0.113 in.
• Shank Type: Annular-Ring Shank
• Point Type: Diamond Point
• Approx. Count per Lb.: 120
• Country of Origin: United States

Available Pack Options

• S10SND1: 1 Lb (120)
• S10SND5: 5 Lb (600)
• S10SNDB: 25 Lb (3000)

Approved Applications

• Fastening Wood Siding

Frequently Asked Questions

What makes an annular-ring shank better than a smooth shank for wood siding?

An annular-ring shank has ridges along its length that grip the surrounding wood fibers as the nail is driven in. This significantly increases withdrawal resistance compared to a smooth shank, meaning the nail resists being pulled back out under the stress of wood movement, wind loads, and weather cycling. For wood siding specifically, this helps prevent board cupping and keeps panels firmly secured over the long term.

Why does the checkered head pattern matter for siding installation?

The checker pattern on the full round head serves two practical purposes: it reduces glare from sunlight that a smooth, polished head would reflect, and it accepts surface finishes such as paint or stain so the nail head blends into the finished siding surface. The texture also visually matches the natural grain of wood, making the fastener less noticeable after installation.

Is Type 304 stainless steel appropriate for all exterior siding environments?

Type 304 stainless steel provides strong general corrosion resistance suitable for most exterior wood siding applications. For seaside or coastal environments where exposure to salt air and salt water is a significant factor, Type 316 stainless steel offers superior corrosion resistance and would be the recommended alternative for those conditions.

What nail size and gauge are these siding nails?

These are 10d penny size nails at 3 inches in length, with a 12-gauge wire diameter of 0.113 inches. The 7/32-inch head diameter provides adequate bearing surface against the face of the siding without being overly conspicuous. Approximately 120 of these nails weigh one pound, which is a useful reference when estimating quantities needed for a project.