Simpson 1-inch 2d Annular Ring Shank Common Nail in Type 316 Stainless Steel is a heavy-duty fastener engineered for wood-to-wood connections and framing applications where long-term holding power and corrosion resistance are critical. Built by Simpson Strong-Tie and manufactured in the United States, this 15-gauge nail features an annular ring shank that dramatically increases withdrawal resistance compared to smooth-shank alternatives, making it a reliable choice for exterior framing, coastal construction, and other demanding environments where fasteners are exposed to moisture, salt air, and the elements.

Key Features

• Type 316 Stainless Steel material - delivers superior corrosion resistance compared to standard stainless grades, making it especially well-suited for seaside and saltwater-exposed applications where fastener degradation is a real concern.
• Annular ring shank design - the ringed shank profile grips surrounding wood fibers tightly, increasing withdrawal resistance so connections hold firmly over time even under load, vibration, or seasonal wood movement.
• 15-gauge, 0.072-inch shank diameter - provides a strong, slender profile that drives cleanly into wood without excessive splitting, balancing holding strength with ease of installation.
• Full round head, 3/16-inch diameter - distributes clamping force evenly across the wood surface for a flush, secure seat that minimizes surface damage and ensures consistent fastening.
• Diamond point tip - allows the nail to start and drive smoothly and accurately, reducing deflection and improving placement control during framing and wood-to-wood fastening work.
• 1-inch length (2d penny size) - sized for applications requiring a compact, precise fastener that penetrates adequately without over-penetrating thinner lumber or panel materials.
• Made in the United States - consistent domestic manufacturing quality you can rely on for code-compliant, professional construction projects.

Why This Product

• Engineered for coastal and harsh outdoor environments - Type 316 stainless steel is the preferred material for seaside and high-moisture construction because it withstands saltwater, humidity, and chemical exposure that would compromise standard zinc or galvanized fasteners over time.
• Stays put where smooth-shank nails back out - the annular ring shank is specifically designed to resist nail pop and withdrawal, a common failure mode in exterior wood framing and deck applications subject to seasonal expansion and contraction.
• Right-sized for precise, controlled framing work - at 1 inch long and 15 gauge, this nail handles wood-to-wood fastening in situations where a larger nail would split the stock or punch through the opposite face, giving builders and finish carpenters more control over results.
• Trusted Simpson Strong-Tie quality - Simpson Strong-Tie is a recognized leader in structural fasteners, and this nail is part of their exterior fastener lineup specifically developed to meet the demands of long-lasting outdoor construction.

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Gauge: 15
• Penny Size: 2d
• Length (in.): 1
• Head Type: Full Round Head
• Head Diameter (in.): 3/16
• Shank Type: Annular-Ring Shank
• Shank Diameter (in.): 0.072
• Point Type: Diamond Point
• Approx. Count per Lb.: 807
• Country of Origin: United States

Available Pack Options

• T2ACN1: 1 Lb (807)
• T2ACNB: 25 Lb (20175)

Approved Applications

• Fastening Wood-to-Wood
• Framing - Wood

Frequently Asked Questions

What makes Type 316 stainless steel a better choice than standard stainless or galvanized for exterior nails?

Type 316 stainless steel contains molybdenum, which gives it enhanced resistance to corrosion from saltwater, chlorides, and harsh chemicals. This makes it the recommended choice for seaside applications and any exterior project where long-term performance in aggressive environments is required - conditions where standard galvanized or Type 304 stainless fasteners may corrode prematurely.

Why does the annular ring shank matter compared to a smooth-shank nail of the same size?

The annular ring shank features a series of rings along the shank that lock into the surrounding wood fibers as the nail is driven. This mechanical grip significantly increases withdrawal resistance - meaning the nail is much harder to pull back out - providing a more secure attachment in wood-to-wood framing applications, especially in outdoor conditions where wood swells and shrinks with changes in moisture and temperature.

How many of these nails are in a pound?

There are approximately 807 nails per pound. This count can help with estimating quantities needed for a project when purchasing by weight.

What applications are these nails approved for?

These nails are designed for fastening wood-to-wood connections and wood framing applications. The combination of the annular ring shank and Type 316 stainless steel material makes them particularly well-suited for exterior and coastal framing work where both holding strength and corrosion resistance are essential.