Simpson 3d x 1-1/4" Annular Ring Shank Roofing Nail in 304 Stainless Steel is a heavy-duty fastener engineered for demanding roofing applications where long-term holding power and corrosion resistance are essential. Manufactured by Simpson, this 10-gauge nail delivers a secure, lasting connection between roofing materials and wood substrates - making it a reliable choice for shingle installation, roofing underlayment, and similar exterior fastening tasks in moisture-prone or coastal environments.

Key Features

• Type 304 Stainless Steel construction - delivers superior corrosion resistance compared to standard galvanized fasteners, making this nail well-suited for humid, wet, or saltwater-adjacent environments where lesser materials would degrade over time.
• Annular ring shank design - the rings along the shank dramatically increase withdrawal resistance, meaning the nail grips the wood more firmly and is far less likely to back out under wind uplift, thermal expansion, or seasonal movement.
• Full round, smooth-faced head with 0.375" diameter - the large flat head provides a broad bearing surface that holds roofing material securely in place without punching through or tearing the substrate.
• 10-gauge shank (0.131" diameter) - heavy wire gauge offers greater shank strength and shear resistance than lighter-gauge nails, reducing the risk of fastener failure under load.
• 1-1/4" length - sized for standard roofing applications where penetration depth needs to be controlled to avoid over-driving into thin decking or tile materials.
• Diamond point tip - a sharp, precise point allows easier driving and reduces splitting in wood decking or sheathing, speeding up installation and improving accuracy.
• Approximately 166 nails per pound - consistent count-per-pound specification makes material estimation and project planning straightforward for contractors and DIYers alike.

Why This Product

• Built for environments where standard nails fail - the 304 stainless steel composition resists rust and corrosion in wet, high-humidity, and coastal roofing environments where zinc-plated or electro-galvanized nails would corrode and lose holding power.
• Withdrawal resistance you can count on - the annular ring shank is specifically engineered to resist pull-out forces, making this nail an ideal choice for roofing applications where wind uplift or material movement could loosen a smooth-shank fastener over time.
• Designed by a trusted fastener brand - Simpson brings engineering-grade quality to this roofing nail, offering consistent dimensional tolerances and material performance in every piece.
• Made in the United States - domestic manufacturing supports consistent quality control and supply reliability for professional roofing and construction projects.

Specifications

• Brand: Simpson Strong-Tie
• Nail Size: 3d
• Length: 1-1/4 in.
• Head Diameter: 0.375 in.
• Shank Diameter: 0.131 in.
• Gauge: 10
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Pattern: Smooth Head
• Point Type: Diamond Point
• Material: Type 304 Stainless Steel
• Approx. Count per Lb.: 166
• Country of Origin: United States

Available Pack Options

• S310ARN1: 1 Lb
• S310ARN5: 5 Lb
• S310ARNB: 25 Lb

Frequently Asked Questions

What is the difference between the annular ring shank and a smooth shank roofing nail?

The annular ring shank features ridged rings along the length of the nail shank that grip into wood fibers as the nail is driven. This increases withdrawal resistance - meaning the nail holds more firmly against forces that might pull it back out, such as wind uplift or material movement - compared to a smooth shank nail of the same size and gauge.

Is 304 stainless steel appropriate for use near saltwater or in high-moisture roofing environments?

Yes. Type 304 stainless steel offers superior corrosion resistance compared to standard galvanized or bright-finish nails, making it well-suited for roofing installations in humid, wet, and coastal conditions where long-term fastener integrity is critical.

What roofing materials is the 1-1/4" length typically used with?

A 1-1/4" nail length is commonly used for fastening standard roofing materials such as shingles and underlayment to wood decking or sheathing. The length provides adequate penetration into the substrate without over-driving through thinner decking panels. Always consult the roofing material manufacturer's installation recommendations for specific fastener length requirements.

Is this roofing nail manufactured in the United States?

Yes. This Simpson roofing nail is a product of the United States, supporting consistent manufacturing standards and quality control for professional construction applications.

Note: Product dimensions may differ from picture.