Simpson Strong-Tie 8d 0.131" x 2-1/2" SCNR Annular Ring-Shank Connector Nail in Type 316 Stainless Steel is engineered specifically to work with Simpson Strong-Tie connector hardware, delivering maximum load values and long-term holding strength in demanding structural applications. Made in the United States from Type 316 stainless steel, these ring-shank connector nails are the preferred choice for stainless-steel connector installations in coastal, marine, and corrosive environments where standard fasteners fall short. The annular ring shank bites into wood fibers and resists withdrawal forces, while the full round smooth head seats cleanly and consistently against connector flanges for reliable, code-compliant framing connections.

Key Features

• Type 316 stainless steel material - resists saltwater, moisture, and chemical exposure, making these nails suitable for coastal, marine, and harsh outdoor environments where standard carbon steel fasteners would corrode
• Annular ring-shank design - the ring pattern grips wood fibers along the full shank length, delivering superior withdrawal resistance compared to smooth-shank nails and helping connectors achieve their rated load values
• Full round head at 0.280" diameter - provides broad bearing surface against connector plate holes, distributing load evenly and preventing pull-through for structurally sound connections
• Smooth head pattern - allows flush, consistent seating against connector flanges so every nail drives to the correct depth without snagging or tilting
• 2-1/2" length (10 gauge, 0.131" shank diameter) - dimensioned to be compatible with standard framing members and connector plate depths, reducing the need for field trimming and speeding up installation
• Developed specifically for Simpson Strong-Tie connectors - engineered as the optimum fastener for connector products, so installers can trust these nails are the correct match for achieving published connector load ratings
• Domestic manufacture - produced in the United States to consistent quality standards, supporting traceability and specification compliance on projects that require U.S.-origin materials

Why This Product

• Matched to connector hardware for full rated performance - Simpson Strong-Tie SCNR nails are engineered as the optimum fastener for use with stainless-steel connectors, meaning you are not guessing at compatibility or risking under-performance; the load values published for the connector assume these nails are used
• Type 316 stainless steel handles environments where other fasteners fail - in coastal, waterfront, and chemically exposed settings, Type 316 material offers corrosion resistance that Type 304 or galvanized fasteners cannot reliably match, making these the right choice when using stainless-steel connector hardware
• Ring shank geometry maximizes withdrawal resistance - the annular ring shank is specifically designed to resist the nail pulling back out of the wood under load, which is critical when fastening structural connectors that transfer shear, uplift, and tension forces through the framing assembly
• Special lengths designed for economy and depth compatibility - the 2-1/2" length is not arbitrary; it is sized to align with connector plate geometry and framing member dimensions, reducing installation errors and minimizing wasted fastener material

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Length: 2-1/2 in.
• Shank Diameter: 0.131 in.
• Head Diameter: 0.280 in.
• Gauge: 10
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Pattern: Smooth Head
• Country of Origin: United States

Available Pack Options

• SSA8DD: 90 Pk
• SSA8D5: 450 Pk
• SSA8DB: 2250 Pk

Approved Applications

• Fastening Simpson Strong-Tie Connectors

Frequently Asked Questions

Why do I need to use ring-shank nails instead of smooth-shank nails with Simpson Strong-Tie connectors?

Simpson Strong-Tie connector load ratings are based on testing with specific fastener types. The annular ring shank on these SCNR nails significantly increases withdrawal resistance compared to a smooth shank, which is essential for connectors that carry uplift, shear, and tension loads. Using smooth-shank nails in place of ring-shank nails can result in lower actual load capacity than the published connector values.

When should I choose Type 316 stainless steel nails over Type 304 or galvanized options?

Type 316 stainless steel nails are recommended when pairing with stainless-steel connectors, particularly in coastal, marine, waterfront, or other corrosive environments. Mixing dissimilar metals - such as pairing a stainless connector with a galvanized nail - can accelerate galvanic corrosion. Using Type 316 nails with Type 316 connectors maintains consistent material compatibility and long-term corrosion resistance.

What is the nail size and how do the dimensions relate to framing compatibility?

These are 8d nails with a 0.131" shank diameter, 0.280" head diameter, and 2-1/2" length, gauged at 10 gauge. The 2-1/2" length is specifically selected to provide depth compatibility with common framing members and connector plate thicknesses, so the nail penetrates adequately into the receiving member without bottoming out or over-penetrating.

Are these nails manufactured in the United States?

Yes. These Simpson Strong-Tie SCNR ring-shank connector nails are made in the United States, which supports material traceability and helps meet project specifications that require domestic-origin fasteners.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.