Simpson 6d x 2" Annular Ring Shank Box Nail in 316 Stainless Steel is a premium fastener engineered for demanding outdoor and coastal construction applications. Built by Simpson from Type 316 stainless steel, this 2-inch box nail features an annular ring shank that dramatically increases withdrawal resistance, making it a reliable choice for permanent wood foundations, decking, siding, and seaside structures where long-term holding strength and corrosion resistance are critical.

Key Features

• Type 316 stainless steel construction - delivers superior corrosion resistance compared to standard stainless alloys, making it especially well-suited for saltwater environments, coastal installations, and applications exposed to chemicals or persistent moisture.
• Annular ring shank design - the ringed shank bites into wood fibers and resists pull-out forces far better than smooth shank nails, providing a secure, long-lasting attachment in structural and finish applications alike.
• Full round head with checkered pattern - the textured head blends naturally with wood grain, reduces glare in outdoor sunlight, and readily accepts stains, paints, and other surface finishes for a clean final appearance.
• Diamond point tip - drives cleanly and precisely into wood with reduced splitting, improving installation efficiency and reducing material waste.
• 12-gauge, 0.113" shank diameter with 1/4" head diameter - sized as a true box nail for use in thinner lumber and composite materials where a slender shank minimizes splitting risk while maintaining structural integrity.
• 6d penny size at 2" length - a versatile nail length appropriate for a wide range of framing, sheathing, and finish applications in both residential and light commercial construction.
• Recommended for permanent wood foundations - meets the fastener requirements referenced in the ANSI/AF&PA Permanent Wood Foundations Design Specifications, giving builders confidence in code-compliant construction.
• Made in the United States - domestic manufacturing supports consistent quality standards and reliable availability for professional contractors and builders.

Why This Product

• The right nail for coastal and marine environments - Type 316 stainless steel is specifically chosen over Type 304 for its enhanced resistance to chloride-rich saltwater environments, making this nail the appropriate selection for seaside decks, docks, and exterior structures where standard fasteners corrode quickly.
• Holds tighter over time - the annular ring shank creates mechanical interlock with wood fibers, so withdrawal resistance remains high even as wood expands and contracts through seasonal moisture cycles - a key advantage over smooth shank alternatives in exterior applications.
• Finish-ready head design - the checkered full round head accepts surface coatings without standing out visually, which matters on exposed exterior finish work like trim boards, decking fascia, and siding where aesthetics are as important as performance.
• Specification-grade fastener for permanent structures - this nail is not a commodity product; its compliance with ANSI/AF&PA Permanent Wood Foundations Design Specifications means it is appropriate for applications that require documented, traceable fastener performance standards.

Specifications

• Brand: Simpson Strong-Tie
• Coating/Material: Type 316 Stainless Steel
• Penny Size: 6d
• Length: 2 in.
• Head Diameter: 1/4 in.
• Shank Diameter: 0.113 in.
• Gauge: 12
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Pattern: Checkered
• Point Type: Diamond Point
• Approx. Count per Lb.: 175
• Country of Origin: United States

Available Pack Options

• T6ABN1: 1 Lb (175)
• T6ABN5: 5 Lb (875)
• T6ABNB: 25 Lb (4375)

Frequently Asked Questions

What is the difference between Type 316 and Type 304 stainless steel nails, and why does it matter?

Type 316 stainless steel contains molybdenum, which gives it enhanced resistance to chlorides and salt - making it significantly more corrosion-resistant than Type 304 in coastal, marine, and high-moisture environments. Simpson specifically recommends Type 316 for seaside applications where exposure to saltwater or airborne salt spray is a concern. Type 304 is suitable for general outdoor use, but Type 316 is the preferred choice when long-term performance in harsh conditions is required.

What does an annular ring shank do, and why is it better than a smooth shank nail?

An annular ring shank is cut with circumferential ridges along its length. When driven into wood, these rings create a mechanical interlock with the wood fibers, dramatically increasing withdrawal resistance - the force required to pull the nail back out. This makes annular ring shank nails the preferred choice for applications like decking, siding, and permanent wood foundations where boards must remain firmly secured even under repeated stress, vibration, or wood movement from moisture changes.

Are these nails compliant with permanent wood foundation construction standards?

Yes. Simpson stainless steel annular ring shank nails are recommended for permanent wood foundation construction in compliance with the ANSI/AF&PA Permanent Wood Foundations Design Specifications. Using the correct fastener type and material is a critical part of meeting these specification requirements, and Type 316 stainless steel provides the corrosion resistance needed for below-grade and high-moisture foundation environments.

What does the checkered head pattern do, and does it affect how the nail drives?

The checkered pattern on the full round head serves two practical purposes: it reduces glare from sunlight on exposed surfaces, and it helps the nail head blend visually with wood grain for a cleaner appearance. It also accepts paints, stains, and other surface finishes more effectively than a smooth head. The checkered pattern does not negatively affect driving performance - the nail still installs with standard hammers or nail guns compatible with this shank diameter and head style.

Note: Product dimensions may differ from picture. Please see item description for specifications.