Simpson 4d 1-1/2" Shake and Shingle Siding/Roofing Nail in Type 316 Stainless Steel is engineered by Simpson Strong-Tie for securing wood shakes and shingles in demanding exterior roofing and siding applications. Crafted from Type 316 stainless steel, these nails deliver superior corrosion resistance - standing up to moisture, salt exposure, and harsh outdoor conditions that would degrade standard fasteners over time. Whether you are installing cedar shake roofing, wood shingle siding, or similar applications where long-term holding power and a clean appearance matter, this 4d nail is built to perform without compromising the wood or the finish.

Key Features

• Type 316 Stainless Steel material - provides robust corrosion resistance in coastal, wet, and chemically exposed environments, extending the service life of shingle and shake installations
• 7/32" full round head diameter - delivers ample bearing surface across the face of each shingle or shake, reducing the chance of the head pulling through the material
• Checkered head pattern - blends with natural wood grain to reduce visible glare from sunlight and accepts surface finishes for a refined appearance
• Annular-ring shank - dramatically increases withdrawal resistance compared to smooth-shank nails, keeping shakes and shingles securely fastened even under wind load and thermal cycling
• Slender 0.083" shank diameter at 14 gauge - minimizes splitting risk as the nail is driven into thin shake and shingle stock, preserving the integrity of the wood
• Diamond point tip - allows easier, more controlled driving into dense or dry wood, reducing installation effort and improving accuracy
• Made in the United States - manufactured to consistent quality standards that professional contractors rely on for predictable performance

Why This Product

• The annular-ring shank combined with Type 316 stainless steel makes this nail a reliable choice for exterior shake and shingle work where long-term holding power in wet or salt-air environments is critical - plain smooth-shank alternatives simply cannot match this withdrawal resistance over time.
• The slender 14-gauge shank at 0.083" is purposefully sized to reduce splitting in thin, narrow shakes and shingles - a common frustration with heavier gauge fasteners that can crack or damage the wood during installation.
• The checkered full round head offers a dual advantage: a broad 7/32" bearing surface that holds shingles firmly in place, plus a textured finish that visually integrates with wood surfaces rather than standing out as a reflective spot on the roof or wall.
• At approximately 394 nails per pound, this product is an efficient choice for large shake or shingle projects where consistent fastener performance and corrosion resistance across thousands of fastening points matter most.

Specifications

• Brand: Simpson Strong-Tie
• Penny Size: 4d
• Length: 1-1/2 in.
• Gauge: 14
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Shank Type: Annular-Ring Shank
• Shank Diameter: 0.083 in.
• 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

• T4SN71: 1 Lb (394)
• T4SN75: 5 Lb (1970)
• T4SN7B: 25 Lb (9850)

Frequently Asked Questions

Why is Type 316 stainless steel recommended for shake and shingle applications?

Type 316 stainless steel offers a higher level of corrosion resistance than Type 304 or galvanized alternatives, making it especially suitable for exterior roofing and siding installations exposed to moisture, rain, and salt-air environments. This material helps prevent rust staining on wood shakes and shingles while maintaining long-term holding strength in harsh outdoor conditions.

What is the purpose of the annular-ring shank on this nail?

The annular-ring shank features rings along the shaft that grip the surrounding wood fibers as the nail is driven in. This significantly increases withdrawal resistance compared to a smooth-shank nail, keeping shakes and shingles securely in place even as the wood expands and contracts with changes in temperature and humidity over time.

Will this nail split thin wood shakes or shingles during installation?

This nail is designed with a slender 0.083-inch shank diameter at 14 gauge specifically to minimize splitting risk in thin shake and shingle material. The diamond point also contributes to easier, more controlled penetration, reducing the lateral stress that can crack or split narrow pieces of wood during driving.

What does the checkered head pattern on this nail do?

The checkered pattern on the full round head serves two practical functions. It reduces glare from sunlight reflecting off the nail head, helping the fasteners blend more naturally into wood roofing and siding surfaces. The texture also allows the head to accept surface finishes more readily, further reducing visual contrast against the surrounding material.

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