Simpson 3-1/2" 16d Smooth Shank Common Nail in 304 Stainless Steel is a heavy-duty fastener built for decking, framing, and general wood construction where long-term corrosion resistance is essential. Crafted from Type 304 stainless steel, these 8-gauge nails deliver reliable holding strength in outdoor and moisture-exposed environments, making them a trusted choice for structural and non-structural wood applications alike.

Key Features

• Type 304 Stainless Steel construction - resists rust and corrosion in outdoor, damp, and weather-exposed conditions, extending the service life of your fastened connections
• Smooth shank profile - allows clean, consistent driving through wood for efficient installation across a wide range of general construction tasks
• 3-1/2" length (16d penny size) - provides deep penetration and strong holding power for structural framing, decking boards, and heavy timber work
• 8 gauge (0.162" shank diameter) - delivers a robust shank diameter suited to high-load wood construction applications without splitting material
• Full round head with smooth head pattern - maximizes bearing surface against the wood face, reducing pull-through and improving fastener retention
• Diamond point tip - enables precise nail placement and cleaner entry into wood fibers, reducing splitting at board edges
• 11/32" head diameter - wide bearing surface that seats flush and securely against dimensional lumber and decking material
• Made in the United States - manufactured to consistent quality standards for professional construction use

Why This Product

• Type 304 stainless steel construction makes these nails a dependable fastener for exterior wood projects where standard steel nails would corrode - protecting the integrity of your structure over time without staining or degrading surrounding wood
• The 16d, 3-1/2" length is one of the most widely specified nail sizes in structural framing and decking, meaning these nails fit standard construction requirements without custom ordering or substitution
• Simpson's stainless steel nails are recognized by the ANSI/AWC Permanent Wood Foundations Design Specifications as recommended fasteners for permanent wood foundations, making them appropriate where code-compliance matters
• The full round, smooth head paired with a diamond point delivers a combination of driving ease and secure seating - reducing installer fatigue on large jobs while ensuring every nail sets cleanly and consistently

Specifications

• Brand: Simpson Strong-Tie
• Coating/Material: Type 304 Stainless Steel
• Gauge: 8
• Penny Size: 16d
• Length: 3-1/2 in.
• Head Diameter: 11/32 in.
• Shank Diameter: 0.162 in.
• Shank Type: Smooth Shank
• Head Type: Full Round Head
• Head Pattern: Smooth Head
• Point Type: Diamond Point
• Approx. Count per Lb.: 44
• Country of Origin: United States

Available Pack Options

• S16CN1: 1 Lb (44)
• S16CN5: 5 Lb (220)
• S16CNB: 25 Lb (1100)

Frequently Asked Questions

What is the difference between Type 304 and Type 316 stainless steel for nails?

Type 304 stainless steel provides strong corrosion resistance for most outdoor and moisture-exposed wood construction applications. Type 316 stainless steel offers superior corrosion resistance and is specifically recommended for seaside or coastal environments where salt air and saltwater exposure is a factor. For inland and standard exterior projects, 304 stainless steel is a well-suited and cost-effective choice.

Are these nails appropriate for permanent wood foundation construction?

Yes. Stainless steel nails are recommended for the construction of permanent wood foundations per the ANSI/AWC Permanent Wood Foundations Design Specifications. The 304 stainless steel composition of these nails meets that recommendation for non-coastal applications.

What types of construction projects are these 16d common nails typically used for?

These 3-1/2" 16d smooth shank nails are well suited for decking installations, structural wood framing, general wood construction, and heavy timber connections. Their full round head and 8-gauge shank provide the holding strength and bearing surface needed for demanding structural and exterior applications.

Where are these Simpson stainless steel nails manufactured?

These nails are manufactured in the United States, ensuring consistent production quality for professional construction use.

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