Simpson Premium Siding Nail in 6d / 2" x 5/32" Head, 14 Gauge, 316 Stainless Steel with Annular-Ring Shank is a professional-grade fastener engineered by Simpson Strong-Tie for wood siding installations in demanding outdoor and coastal environments. Passivated Type 316 stainless steel construction delivers superior corrosion resistance in severely corrosive conditions - including seaside and marine applications - helping exterior siding stay firmly anchored for the long term. Whether you are working on a beachfront project or any high-moisture exposure setting, this nail is built to withstand salt air, humidity, and other aggressive elements that would cause ordinary fasteners to fail prematurely.

Key Features

• Passivated Type 316 Stainless Steel material - treated to maximize corrosion resistance, making it suitable for severely corrosive environments including seaside and marine siding applications where standard galvanized fasteners fall short.
• Annular-Ring Shank - the ringed shank bites into wood fibers and dramatically increases withdrawal resistance, delivering greater holding power so siding stays securely fastened over time.
• Full Round Head with Circle Pattern (5/32" diameter) - the circular head pattern reduces surface glare and is designed to accept surface finishes, giving siding a cleaner, more professional appearance after installation.
• Diamond Point tip - the blunt diamond point drives true and reduces board splitting, protecting the integrity of the siding material during installation.
• 14 Gauge wire / 0.083" shank diameter - a slim yet strong shank profile minimizes surface damage to siding boards while still providing the structural holding power needed for exterior cladding.
• 2" length / 6d penny size - optimized length for penetrating wood siding and engaging the substrate beneath, meeting common siding fastener depth requirements.
• Made in the United States - domestic manufacturing supports consistent quality control standards across each nail produced.

Why This Product

• Engineered specifically for harsh coastal and seaside environments - passivated Type 316 stainless steel is the material of choice when salt air and moisture would rapidly corrode standard nails. This nail resists the corrosion that causes fastener failure and siding deterioration in waterfront and high-humidity climates.
• Annular-ring shank keeps siding from pulling away - ordinary smooth-shank nails can loosen over years of thermal expansion and contraction. The annular-ring design mechanically locks into wood fibers, providing greater withdrawal resistance and keeping siding flat and secure through seasonal cycles.
• Diamond point protects your siding investment - board splitting during nailing can ruin expensive siding materials. The blunt diamond point drives true and reduces the risk of splits, saving time and material waste on the job.
• Circle pattern head finishes cleanly - the circle-patterned full round head reduces glare and accepts surface finishes such as paint or stain, integrating neatly into the finished look of the siding rather than drawing attention to fastener locations.

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Penny Size: 6d
• Length (in.): 2
• Gauge: 14
• Shank Diameter (in.): 0.083
• Shank Type: Annular-Ring Shank
• Head Diameter (in.): 5/32
• Head Type: Full Round Head
• Head Pattern: Circle Head
• Point Type: Diamond Point
• Approximate Count Per Lb: 402
• Country of Origin: United States

Available Pack Options

• T6KR51: 1 Lb (402)
• T6KR55: 5 Lb (2010)
• T6KR5B: 25 Lb (10050)

Approved Applications

• Fastening Wood Siding

Frequently Asked Questions

Why is Type 316 stainless steel recommended for siding nails in coastal areas?

Type 316 stainless steel contains added molybdenum compared to standard 304 stainless, giving it significantly higher resistance to salt, chlorides, and moisture. For siding in severely corrosive environments - such as seaside or marine locations - this material helps prevent the rust and fastener degradation that can cause siding to loosen or stain over time. Simpson's passivation process further enhances this corrosion resistance at the surface level.

What is the benefit of an annular-ring shank over a smooth shank on a siding nail?

An annular-ring shank features rings along the shank that grip wood fibers mechanically as the nail is driven. This significantly increases withdrawal resistance compared to a smooth-shank nail, meaning the nail requires much more force to pull back out. For siding applications subject to wind loads, thermal movement, and long-term weathering, this greater holding power helps keep panels firmly in place.

Will the circle pattern head accept paint or stain after installation?

Yes. The circle pattern head on this nail is specifically designed to reduce glare and accept surface finishes. This means paint, stain, or other exterior coatings can be applied over the nail head after installation, helping the fastener blend into the finished siding surface for a cleaner appearance.

How does the diamond point help during installation in wood siding?

The blunt diamond point is designed to drive true - meaning it follows a straight path through the wood without wandering - while also reducing the likelihood of board splitting. Splitting is a common risk when nailing near the edges of wood siding boards, and a properly designed point geometry minimizes that damage, protecting the siding material and the quality of the finished installation.

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