Simpson 4d 1-1/2" Shake and Shingle Siding and Roofing Nail in Type 304 Stainless Steel by Simpson Strong-Tie is engineered for reliable, corrosion-resistant fastening of wood shakes, shingles, and exterior siding. Whether you are tackling a roofing installation or securing wood siding to a wall, this nail delivers a combination of holding strength, split-resistance, and long-term durability that exterior applications demand. The annular-ring shank bites firmly into wood fibers to resist withdrawal, while the slender 14-gauge profile lets the nail drive cleanly without cracking delicate shingle material.

Key Features

• Type 304 Stainless Steel material - provides powerful corrosion resistance for exterior roofing and siding projects exposed to moisture and the elements, helping fastenings last as long as the structure itself.
• Annular-ring shank - dramatically increases withdrawal resistance compared to a smooth shank, keeping shakes and shingles firmly anchored through seasonal wood movement and wind loads.
• Full round head with 7/32" diameter - delivers ample bearing surface across the face of each shake or shingle, distributing holding force and reducing the chance of the nail pulling through.
• Checkered head pattern - blends with wood grain to reduce glare from sunlight and accepts surface finishes, keeping the finished appearance clean and professional.
• Slender 14-gauge, 0.083" shank diameter - minimizes splitting in thin or fragile shake and shingle material, making it safer to drive nails close to edges without cracking the wood.
• Diamond point tip - allows for easier, more accurate driving by piercing wood fibers cleanly, reducing effort and improving placement precision during installation.
• 1-1/2" length (4d penny size) - sized specifically for shake and shingle siding and roofing applications, providing the penetration depth needed for a secure, lasting attachment.
• Made in the United States - manufactured domestically to Simpson Strong-Tie quality standards, giving you confidence in consistent material and dimensional accuracy across every nail.

Why This Product

• Purpose-built for shakes and shingles - the combination of a full round head, annular-ring shank, and slender profile is specifically designed to secure shake and shingle material without splitting it, making this nail a precise match for wood roofing and siding applications rather than a general-purpose alternative.
• Corrosion resistance where it matters most - Type 304 Stainless Steel construction means these nails hold up against the moisture, rain, and humidity that exterior roofing and siding surfaces face year after year, protecting the integrity of the fastening over the life of the project.
• Higher withdrawal resistance than smooth-shank nails - the annular-ring shank provides a mechanical grip inside the wood that resists pull-out forces caused by wind uplift, thermal expansion, and contraction, so shakes and shingles stay in place long-term.
• Reduces glare and blends with finished surfaces - the checkered head pattern is designed to minimize sunlight reflection and accept surface treatments, making it a considerate choice for visible roofing and siding where aesthetics alongside performance are important.

Specifications

• Brand: Simpson Strong-Tie
• Penny Size: 4d
• Length: 1-1/2 in.
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Gauge: 14
• Shank Diameter: 0.083 in.
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Diameter: 7/32 in.
• Head Pattern: Checkered
• Point Type: Diamond Point
• Approx. Count Per Lb: 394
• Country of Origin: United States

Available Pack Options

• S4SN71: 1 Lb (394)
• S4SN75: 5 Lb (1970)
• S4SN7B: 25 Lb (9850)

Approved Applications

• Roofing
• Fastening Wood Siding

Frequently Asked Questions

Why is an annular-ring shank important for shake and shingle nails?

An annular-ring shank has raised rings along its length that grip wood fibers mechanically once driven. This significantly increases withdrawal resistance compared to a smooth shank, helping shakes and shingles resist being pulled away from the roof deck or wall sheathing by wind uplift, swelling, and shrinkage over time.

Why is Type 304 Stainless Steel used for roofing and siding nails?

Type 304 Stainless Steel provides strong corrosion resistance, which is essential for exterior fasteners in roofing and siding applications where constant exposure to moisture, humidity, and rain can cause lesser materials to rust. Using stainless steel fasteners helps ensure the connection remains strong and stain-free throughout the life of the installation.

What does the checkered head pattern on these nails do?

The checkered pattern on the full round head serves two practical purposes: it reduces glare from direct sunlight on installed shakes and shingles, and it accepts surface finishes, helping the nail head blend with the surrounding wood material for a cleaner finished appearance.

Why is the slender shank diameter important when nailing shakes and shingles?

Shakes and shingles - especially wood varieties - can split when penetrated by a nail that is too thick relative to the material. The slender 0.083 in. shank diameter of this nail is designed to minimize that splitting risk, allowing nails to be driven closer to edges and into thinner sections of material without cracking the shake or shingle.