Simpson 2-1/4" 13-Gauge Ring-Shank Siding Nail in Type 304 Stainless Steel from Simpson Strong-Tie is engineered for professional siding installation where long-term corrosion resistance and superior holding power are essential. Collated in a 15 deg. wire-coil format, these full-round-head, annular-ring-shank fasteners are purpose-built for fastening fiber cement boards and wood siding - delivering faster pneumatic driving alongside the lasting durability of stainless steel construction. Whether you are working on new residential siding or repairing exterior cladding, this 7d nail provides the fastening efficiency and withdrawal resistance demanded by high-quality siding applications.

Key Features

• Type 304 Stainless Steel material - provides strong corrosion resistance for exterior siding environments where moisture exposure is a constant concern, extending fastener life without rust staining on finished surfaces.
• Annular-ring (ring-shank) shank design - dramatically increases withdrawal resistance compared to smooth-shank nails, securing siding boards firmly and reducing cupping, buckling, or loosening over time.
• 15 deg. wire-coil collation - compatible with many major manufacturers' pneumatic coil nailers, reducing driving force required and increasing installation speed on large siding projects.
• Full round head with checkered head pattern - the textured head blends with wood grain, reduces glare from sunlight, and accepts surface finishes, leaving a clean, professional appearance after installation.
• Diamond point tip - enables easier nail starting and penetration through fiber cement board and wood siding materials, reducing splitting and driving effort.
• Slender 13-gauge, 0.092" shank diameter - the fine gauge minimizes material splitting during fastening, making these nails well-suited for fiber cement boards where cracking is a risk with heavier fasteners.
• 2-1/4" length (7d penny size) - provides sufficient embedment depth into framing members behind siding panels for a structurally sound, code-appropriate attachment.
• Made in the United States - domestic manufacturing supports consistent quality control and reliable availability for contractors and builders.

Why This Product

• Engineered specifically for fiber cement siding - the combination of a slender 13-gauge shank, diamond point, and annular-ring profile makes this fastener ideal for fiber cement boards, which require precise driving force and high withdrawal resistance without cracking the panel.
• Stainless steel construction protects the finished surface - Type 304 stainless steel resists rust and corrosion, preventing the staining and streaking on siding that occurs when standard steel fasteners oxidize in outdoor and wet conditions.
• Wire-coil format maximizes jobsite productivity - the 15 deg. wire-coil collation allows rapid loading and continuous pneumatic driving, reducing downtime and speeding up large siding installations compared to hand-nailing or smaller strip formats.
• Broad pneumatic tool compatibility - designed to work with many major manufacturers' coil nailers, meaning contractors are not locked into a single tool brand and can use existing equipment already on the job.

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Length: 2-1/4 in.
• Penny Size: 7d
• Gauge: 13
• Shank Diameter: 0.092 in.
• Shank Type: Annular-Ring Shank
• Head Diameter: 0.221 in.
• Head Type: Full Round Head
• Head Pattern: Checkered
• Point Type: Diamond Point
• Collation Type: Wire Coil
• Collation Angle: 15 deg.
• Country of Origin: United States

Available Pack Options

• S13A225SNBP: 900 Pk
• S13A225SNC: 3600 Pk

Approved Applications

• Fastening Wood Siding
• Fastening fiber cement board siding panels

Frequently Asked Questions

What type of nailer is compatible with these 15 deg. wire-coil siding nails?

These nails use 15 deg. wire-coil collation, which is compatible with many major manufacturers' pneumatic coil nailers. Always verify your specific tool's angle and collation type requirements before loading to ensure proper operation and safe driving.

Why is an annular-ring shank important for siding applications?

The annular-ring (ring-shank) design provides significantly greater withdrawal resistance than a smooth-shank nail. In siding applications, this prevents boards from pulling away from the framing over time due to seasonal expansion and contraction, reducing cupping and surface irregularities.

What is the difference between Type 304 and Type 316 stainless steel for siding nails?

Type 304 stainless steel offers strong corrosion resistance suitable for most exterior siding environments. For seaside or coastal applications where salt air and highly corrosive conditions are present, Type 316 stainless steel provides superior corrosion resistance and is the recommended choice for those environments.

Are these nails suitable for use with fiber cement board siding products?

Yes - these nails are specifically noted as ideal for use in fiber cement boards. The slender 13-gauge shank, diamond point, and ring-shank profile work together to allow clean penetration and secure fastening without cracking or damaging the fiber cement panel surface.

Note: Product dimensions and/or thread length may differ from picture.