Simpson 5d Premium Siding Nail in 14-gauge, passivated Type 316 stainless steel is engineered for fastening wood siding in severely corrosive environments where standard fasteners fall short. With a 1-3/4" length, annular-ring shank, and full round circle head, this nail delivers the holding power and weather resistance demanded by coastal and high-exposure exterior applications. Built by Simpson Strong-Tie and made in the United States, it brings together corrosion-proof material science and precision fastener design to protect wood siding installations for the long term.

Key Features

• Passivated Type 316 stainless steel material - resists corrosion in saltwater, seaside, and severely corrosive outdoor environments where standard steel or galvanized nails would degrade prematurely
• 14-gauge, 0.083" annular-ring shank - the ringed profile grips wood fibers mechanically, dramatically increasing withdrawal resistance and holding power compared to smooth-shank fasteners
• Full round circle head at 5/32" diameter - the circular head pattern reduces surface glare and accepts paint and surface finishes, helping siding maintain a clean, finished appearance
• Diamond point tip - drives straight and true while minimizing the risk of splitting wood siding boards during installation
• 1-3/4" length in 5d penny size - sized specifically for wood siding applications, providing adequate penetration without over-driving
• Made in the United States - manufactured to consistent quality standards for reliable performance on every fastening application

Why This Product

• Purpose-built for coastal and high-exposure siding jobs - Type 316 stainless steel is a step above standard 304 stainless, offering superior chloride and salt-spray resistance, making this nail the right choice for oceanfront or seaside wood siding installations where corrosion is the primary threat.
• Passivation adds a critical layer of protection - the passivation process enhances the natural corrosion-resistant oxide layer on the stainless steel surface, ensuring the nail resists rust and staining even under prolonged exposure to moisture and harsh environmental conditions.
• Annular-ring shank solves the problem of siding movement and pull-through - wood siding expands and contracts with seasonal changes, and the ringed shank locks into the substrate to resist that movement, preventing nail pops and loose boards over time.
• Circle head pattern supports professional finishing - the textured circle head accepts paint and stain, allowing fastener heads to blend into the finished siding surface without creating an unsightly glare or requiring additional concealment steps.

Specifications

• Brand: Simpson Strong-Tie
• Finish: Type 316 Stainless Steel
• Material: Type 316 Stainless Steel
• Gauge: 14
• Penny Size: 5d
• Length: 1-3/4 in.
• Head Diameter: 5/32 in.
• Shank Diameter: 0.083 in.
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Pattern: Circle Head
• Point Type: Diamond Point
• Approximate Count Per Lb: 354
• Country of Origin: United States

Available Pack Options

• T5KR51: 1 Lb (354)
• T5KR55: 5 Lb (1770)
• T5KR5B: 25 Lb (8850)

Approved Applications

• Fastening Wood Siding

Frequently Asked Questions

Why is Type 316 stainless steel recommended over other materials for seaside siding applications?

Type 316 stainless steel contains molybdenum, which provides enhanced resistance to chlorides and salt-laden air compared to standard stainless alloys. Combined with the passivation treatment applied to these nails, the material is specifically suited for severely corrosive environments including oceanfront and coastal siding installations where moisture and salt exposure are constant concerns.

What does the annular-ring shank do that a smooth-shank nail does not?

The annular-ring shank features a series of rings along the shank that lock into the wood substrate as the nail is driven. This mechanical grip significantly increases withdrawal resistance - meaning the nail holds its position even as wood siding expands and contracts with temperature and humidity changes over time, reducing the risk of nail pops and loose or buckling siding boards.

What is the purpose of the passivation process on these stainless steel nails?

Passivation is a chemical treatment that enhances and stabilizes the natural oxide layer on stainless steel surfaces. This treatment maximizes the nail's built-in corrosion resistance, helping it maintain structural integrity and appearance even in prolonged contact with moisture, humidity, and corrosive seaside atmospheres.

What does the circle head pattern on these siding nails offer compared to a plain head?

The circle head pattern reduces surface glare from the nail head, which can be noticeable on exterior siding in direct sunlight. The textured pattern also accepts paints and surface finishes more effectively than a smooth head, allowing the fastener to be blended into the finished siding surface for a cleaner, more professional result.

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