The Simpson 1-1/4 in. Premium Common Nail in Type 316 Stainless Steel is a professional-grade fastener built for applications where corrosion resistance is non-negotiable. Produced in the United States to Simpson's quality standards, this 15-gauge nail combines an annular-ring shank for superior pull-out resistance with a circle-pattern head and diamond point, delivering precise, reliable performance in seaside construction, coastal environments, and any severe-exposure fastening application.

Key Features

• Type 316 Stainless Steel Construction - Contains elevated molybdenum content that resists salt air, salt spray, and moisture far more effectively than standard stainless alloys, keeping fasteners structurally sound in the most aggressive outdoor environments.
• Annular-Ring Shank - The ring pattern mechanically locks into surrounding material after driving, providing significantly greater pull-out resistance than smooth-shank alternatives and maintaining holding power over time.
• 15-Gauge Wire Diameter - Balances strength with a shank profile suited to common nailing tasks, reducing the risk of splitting while delivering solid fastening performance.
• Circle-Pattern Head - Accepts surface finishes cleanly and reduces glare, making this nail a practical choice for visible finish and trim work where appearance matters.
• Diamond Point - Promotes accurate placement on entry and drives cleanly through material, reducing deflection and improving consistency during high-volume fastening work.
• American-Made Quality - Manufactured domestically under Simpson's production standards, supporting consistent material and dimensional quality across every nail in the box.

Why This Product

• Built for harsh coastal conditions - Type 316 stainless steel is the recognized choice for seaside and severe-exposure environments where standard fasteners corrode prematurely, making this nail a long-term investment in structural integrity rather than a short-term fix.
• Superior grip where it counts - The annular-ring shank actively resists pull-out forces, which is especially critical in siding, trim, and framing applications where wind loads and structural movement can work standard nails loose over time.
• Versatile across premium fastening applications - From coastal framing and structural common nailing to finish work that demands a clean, low-profile head, this nail covers a broad range of demanding tasks without compromising on corrosion performance.
• Trusted Simpson engineering - Simpson brings extensive expertise to fastener design, and this nail reflects that background with purpose-driven features - ring shank, circle head, diamond point - rather than a generic off-the-shelf specification.

Specifications

• Model Number: T3AKRB
• Coating / Material: Type 316 Stainless Steel
• Gauge: 15
• Penny Size: 3d
• Length: 1-1/4 in.
• Head Diameter: 5/32 in.
• Shank Diameter: 0.072 in.
• Shank Type: Annular-Ring Shank
• Head Pattern: Circle Head
• Point Type: Diamond Point
• Approximate Count: 12,500 nails per 25 lb box
• Country of Origin: United States

Approved Applications

• Seaside and Coastal Construction: Resists the corrosive effects of salt air and salt spray that cause standard fasteners to deteriorate rapidly.
• Severe-Exposure Environments: Suitable for applications subject to high humidity, moisture, and chemical exposure where corrosion resistance is critical.
• General Framing and Fastening: Reliable performance for a wide range of common nailing tasks requiring a premium stainless steel fastener.
• Finish and Trim Work: The circle-pattern head accepts surface finishes, making it suitable for visible applications where appearance matters.

What's Included

• 25 lb box of Simpson T3AKRB 1-1/4" Premium Common Nails (approximately 12,500 nails)