Simpson Strong-Tie 4d x 1-1/2" Annular Ring Shank Roofing Nail in Type 304 Stainless Steel delivers the holding power and corrosion resistance that roofing professionals demand. Engineered specifically for roofing applications, this 10-gauge nail combines a full round smooth head with a diamond point and an annular ring shank to create a fastener that resists loosening over time - even in demanding outdoor environments where moisture and corrosion are ongoing concerns.

Key Features

• Type 304 Stainless Steel material - provides elevated corrosion resistance for long-term performance in outdoor and moisture-exposed roofing environments, reducing the risk of rust staining and fastener degradation
• Annular ring shank design - dramatically increases withdrawal resistance compared to smooth shank nails, locking securely into wood members and plywood roof decks to keep roofing material firmly in place
• Full round smooth head with 3/8" head diameter - delivers a large, flat bearing surface that spreads clamping force across roofing material, helping to prevent pull-through and firmly securing shingles or other roofing substrates
• Diamond point tip - enables cleaner, more precise penetration into roofing materials and decking, reducing splitting and making installation faster and more consistent
• 10 gauge, 0.131" shank diameter - provides robust structural strength appropriate for roofing nail applications without adding unnecessary bulk
• 4d penny size, 1-1/2" length - sized appropriately for standard roofing nail applications where a shorter, high-grip fastener is required
• Made in the United States - manufactured to consistent quality standards, supporting reliable performance job after job

Why This Product

• The annular ring shank is the key reason this nail outperforms smooth shank roofing nails in withdrawal resistance - once driven, the rings grip the wood fibers and resist backing out, keeping roofing material secured even through seasonal wood movement and wind uplift forces
• Type 304 stainless steel construction makes this nail a smart choice for coastal, humid, or otherwise corrosion-prone environments where standard galvanized fasteners may fail prematurely - protecting both the fastener and surrounding materials from rust damage
• The 3/8" full round head creates a broad bearing surface that reduces the chance of roofing material pulling over the nail head, providing a more durable and watertight installation on shingles and similar substrates
• With approximately 139 nails per pound, this is a practical, easy-to-measure fastener for estimating job quantities and managing material usage on roofing projects of any scale

Specifications

• Brand: Simpson Strong-Tie
• Penny Size: 4d
• Length: 1-1/2 in.
• Gauge: 10
• Shank Diameter: 0.131 in.
• Head Diameter: 3/8 in.
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Pattern: Smooth Head
• Point Type: Diamond Point
• Material/Finish: Type 304 Stainless Steel
• Approx. Count per Lb.: 139
• Country of Origin: United States

Available Pack Options

• S410ARN1: 1 Lb
• S410ARN5: 5 Lb
• S410ARNB: 25 Lb

Approved Applications

• Roofing

Frequently Asked Questions

What is the difference between an annular ring shank and a smooth shank roofing nail?

An annular ring shank features ridges along the shank that interlock with wood fibers as the nail is driven, significantly increasing withdrawal resistance compared to a smooth shank nail. This means the nail is much harder to pull back out, making it ideal for roofing applications where wind uplift and material movement can place stress on fasteners over time.

Why is Type 304 stainless steel used for roofing nails?

Type 304 stainless steel offers higher corrosion resistance than standard steel or basic galvanized fasteners, making it well-suited for outdoor roofing environments where nails are exposed to moisture, humidity, and other weathering conditions. This helps prevent rust and fastener failure that could compromise the integrity of the roof installation.

What does the full round smooth head on this nail do?

The full round smooth head provides a large, flat bearing surface measuring 3/8" in diameter. This extra surface area distributes clamping force more evenly across the roofing material, helping to prevent the nail from pulling through shingles or other substrates and ensuring a secure, lasting attachment.

How many of these nails are in a pound?

There are approximately 139 nails per pound. This count-per-pound figure is useful for estimating how much fastener material will be needed for a given roofing project and for managing inventory on the job site.

Note: Product dimensions may differ from picture.