Simpson 1-1/4" Ring Shank 15 deg. Wire Coil Roofing Nail in Type 304 Stainless Steel is engineered for professional roofing crews who need fast, reliable fastening with long-term corrosion resistance. Designed for use with pneumatic coil nailers, this full-round-head nail delivers efficient collated driving in asphalt shingle and synthetic slate roofing systems, combining installation speed with the durability of 304 stainless steel to protect against rust and deterioration over time.

Key Features

• Type 304 Stainless Steel material - resists rust and corrosion in demanding roofing environments, providing lasting holding power without degrading over time
• Annular-ring shank (ring shank) - increases withdrawal resistance significantly compared to smooth-shank fasteners, creating a more secure attachment in OSB and plywood roof decks
• Full round head with 3/8" diameter - distributes load across a wider surface area to reduce pull-through in roofing materials like asphalt and synthetic slate
• 15 deg. wire-coil collation - compatible with many major manufacturers' pneumatic coil nailers, reducing reloading time and increasing installation speed on the job
• Diamond point tip - pierces roofing substrates cleanly for easier driving and reduced splitting, helping maintain material integrity during fastening
• Smooth head pattern - allows consistent, flush seating against roofing surfaces for a clean finished appearance
• 11-gauge shank at 0.120" diameter - provides a sturdy, heavy-duty fastener profile suited to the mechanical demands of roofing applications
• 1-1/4" length (3d penny size) - sized appropriately for roofing material layers without over-penetrating standard roof deck assemblies
• Made in the United States - domestically produced to consistent quality standards for professional construction use

Why This Product

• For roofing contractors working with asphalt shingles or synthetic slate, the ring-shank design delivers superior withdrawal resistance versus smooth-shank alternatives, meaning fasteners stay put under wind uplift and thermal cycling.
• The 304 stainless steel construction provides lasting corrosion resistance in roofing environments where moisture exposure is ongoing - making these nails a long-term investment in roof system performance rather than a source of future rust staining or fastener failure.
• The 15 deg. wire-coil format works with many popular pneumatic coil nailers from major tool brands, so crews can use equipment they already own without investing in additional tooling.
• The combination of full round head, diamond point, and ring shank in a single fastener addresses the three core demands of roofing work - holding strength, driving ease, and pull-through resistance - in one product built to professional standards.

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Length: 1-1/4 in.
• Penny Size: 3d
• Gauge: 11
• Shank Diameter: 0.120 in.
• Head Diameter: 3/8 in.
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Pattern: Smooth Head
• Point Type: Diamond Point
• Collation Type: Wire Coil
• Collation Angle: 15 deg.
• Country of Origin: United States

Available Pack Options

• S11A125RNBP: 720 Pk
• S11A125RNB: 7200 Pk

Approved Applications

• Roofing - Tile and Slate
• Asphalt shingle roofing installations
• Synthetic slate roofing applications

Frequently Asked Questions

What types of roofing applications are these nails designed for?

These ring-shank roofing nails are ideal for asphalt and synthetic slate roofing applications. The annular-ring shank provides superior withdrawal resistance in OSB and plywood roof decks, while the full round head helps prevent pull-through in roofing materials.

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

These nails are manufactured from Type 304 stainless steel, which offers strong corrosion resistance for most roofing environments. For seaside or coastal applications where saltwater exposure is a concern, Type 316 stainless steel provides superior corrosion resistance. Choose the grade appropriate to your project's exposure conditions.

Are these nails compatible with standard pneumatic coil nailers?

Yes. These 15 deg. wire-coil nails are compatible with many major manufacturers' pneumatic coil roofing tools, including models from Bosch (RN175), Bostitch (RN46), DeWalt (D51321), Hitachi (NV45AB2, NV45AE), Makita (AN453), Max (CN445R, CN450R), Paslode (R175-C, CR175C), Porter Cable (RN175A), Ridgid (R175RND), and Senco (RoofPro 455XP), among others.

Why does the ring shank design matter for roofing fasteners?

The annular-ring shank - also called a ring shank - creates mechanical interlock with the surrounding substrate as it is driven, significantly increasing withdrawal resistance compared to a smooth-shank nail. In roofing assemblies, this means the fastener is better able to resist the forces of wind uplift and movement over time, helping maintain a secure roof system for the long term.

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