Simpson 1" 2d Annular Ring Shank Common Nail in Type 304 Stainless Steel is a heavy-duty fastener engineered for wood-to-wood fastening and framing applications where corrosion resistance and long-term holding power are essential. Manufactured by Simpson Strong-Tie, this 15-gauge nail features an annular ring shank that dramatically increases withdrawal resistance compared to smooth-shank alternatives, making it an ideal choice for exterior construction, permanent structures, and projects where a secure, lasting attachment is required. The full round head and diamond point work together to deliver clean, reliable driving performance in a wide range of wood framing tasks.

Key Features

• Type 304 Stainless Steel material - resists corrosion in outdoor and high-moisture environments, keeping connections strong and structurally sound over time without the rust bleed or degradation common with uncoated nails.
• Annular ring shank design - the ringed shank bites into wood fibers for increased withdrawal resistance, meaning once this nail is driven, it holds tighter and is far less likely to work loose under load or seasonal wood movement.
• 15-gauge, 0.072" shank diameter at 1" length - a precisely sized profile that delivers strong holding power in a compact fastener suited to thinner material fastening without splitting the workpiece.
• Full round head at 3/16" diameter - provides a broad bearing surface that distributes load evenly across the material surface, reducing the risk of nail pull-through in softer or thinner wood applications.
• Diamond point tip - self-starting point geometry allows cleaner nail driving with less splitting, improving efficiency and reducing waste during framing and wood assembly work.
• Made in the United States - domestic manufacture supports consistent quality control and reliable material standards for professional and commercial construction projects.

Why This Product

• Built for exterior and long-term exposure - Type 304 stainless steel construction means these nails hold up in humid, wet, or outdoor conditions where standard steel fasteners would corrode and compromise structural integrity over time.
• Superior grip where smooth-shank nails fall short - the annular ring shank provides enhanced withdrawal resistance, making this nail the right choice for applications where nail pop-out or loosening due to wood movement, vibration, or load cycles is a concern.
• Purpose-built for wood framing applications - the combination of a full round head, diamond point, and ringed shank makes this fastener optimized specifically for wood-to-wood connections and structural framing tasks, addressing the real demands of these use cases.
• Trusted Simpson Strong-Tie quality - Simpson Strong-Tie's engineered fastener line is designed to meet demanding construction requirements, and this nail reflects that commitment with precise gauge sizing, consistent head geometry, and reliable stainless material finish.

Specifications

• Brand: Simpson Strong-Tie
• Penny Size: 2d
• Length: 1 in.
• Gauge: 15
• Shank Diameter: 0.072 in.
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Diameter: 3/16 in.
• Point Type: Diamond Point
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Approximate Count Per Lb.: 807
• Country of Origin: United States

Available Pack Options

• S2ACN1: 1 Lb (807)
• S2ACNB: 25 Lb (20175)

Approved Applications

• Fastening Wood-to-Wood
• Framing - Wood

Frequently Asked Questions

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

An annular ring shank features raised rings along the shank that grip wood fibers as the nail is driven. This increases withdrawal resistance significantly compared to a smooth shank nail, meaning the nail resists being pulled back out under load, vibration, or wood movement - making it the preferred choice for applications where holding power is critical.

Is Type 304 stainless steel suitable for outdoor and moisture-exposed applications?

Yes. Type 304 stainless steel offers strong corrosion resistance, making these nails well suited for exterior construction, wood framing in humid environments, and applications where exposure to moisture could cause standard steel fasteners to rust. For seaside or salt-air environments with even higher corrosion demands, a Type 316 stainless option may be more appropriate.

What does the "2d" penny size designation mean for this nail?

The penny size is a traditional measurement system for nail length. A 2d nail corresponds to a 1-inch length, which is reflected in the specifications for this fastener. It indicates a shorter nail suited for thin-material fastening tasks such as joining thinner wood members in framing or assembly applications.

How many nails are in one pound of this product?

There are approximately 807 nails per pound, based on the 15-gauge, 1-inch stainless steel construction. This count can help with estimating quantities needed for a given project when planning material orders.