Simpson Strong-Tie 8d 0.131" x 1-1/2" SCNR Annular Ring-Shank Connector Nails in Type 316 Stainless Steel are precision-engineered fasteners designed to deliver maximum load performance when used with stainless-steel structural connectors. Built from Type 316 stainless steel - a material known for its outstanding resistance to saltwater, chlorides, and harsh outdoor environments - these ring-shank connector nails are the preferred choice for coastal construction, marine applications, and any project where long-term corrosion resistance is critical. The annular ring shank bites into the wood fiber for a superior mechanical grip, translating directly into higher withdrawal resistance and greater structural integrity compared to smooth-shank alternatives.

Key Features

• Type 316 Stainless Steel material - resists corrosion in saltwater, chemical, and high-humidity environments, making these nails appropriate for coastal and marine-grade connector installations
• Annular ring-shank design - the ringed shank bites into wood fibers to dramatically increase withdrawal resistance, enabling connectors to achieve their full rated load values
• Full round head with smooth face - 0.280" head diameter provides broad bearing surface and flush, clean seating against the connector plate for consistent installation every time
• 0.131" shank diameter (10 gauge) - sized specifically to match the hole geometry of Simpson Strong-Tie connectors, ensuring depth compatibility and structural compliance
• 1-1/2" length optimized for connector use - special length affords economy of installation while maintaining proper penetration depth into framing members
• Head ID stamp for easy identification - allows quick visual confirmation that the correct nail type and material has been installed, supporting inspection and code compliance
• Developed specifically for Simpson Strong-Tie connector products - engineered as the optimum fastener to unlock maximum load ratings in stainless-steel connectors rather than relying on generic nails that may underperform

Why This Product

• Purpose-built for stainless-steel connectors - when a Simpson Strong-Tie stainless connector is specified, pairing it with these SCNR ring-shank nails in matching Type 316 stainless steel ensures galvanic compatibility and avoids accelerated corrosion that can occur when dissimilar metals contact each other in wet or coastal conditions
• Ring shank = real load values - smooth-shank nails in the same connector can fall short of the published load table values; the annular ring shank on these fasteners is engineered to achieve the maximum connector load ratings, which matters on structural applications where every pound of capacity counts
• Manufactured in the United States - domestic production supports consistent quality control and material traceability for projects where provenance documentation is required
• Designed for economy and efficiency - the 1-1/2" length is specifically chosen to balance purchase cost with the penetration depth needed for framing members, avoiding waste from oversized nails or underperformance from undersized ones

Specifications

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

Available Pack Options

• SSNA8D: 150 Pk
• SSNA8D5: 750 Pk
• SSNA8DB: 3750 Pk

Approved Applications

• Fastening Simpson Strong-Tie Connectors

Frequently Asked Questions

Why must I use Type 316 stainless steel nails with stainless-steel connectors rather than standard galvanized nails?

When two different metals are in contact in a wet or corrosive environment, galvanic corrosion can occur at the junction point, weakening the connection over time. Using Type 316 stainless steel nails with stainless-steel connectors ensures metal compatibility and eliminates this risk. Type 316 stainless steel also provides superior resistance to chlorides and saltwater compared to galvanized coatings, making the combination the correct choice for coastal, marine, and high-humidity installations.

Why does the ring shank matter - can I substitute a smooth-shank nail of the same size?

The annular ring shank is specifically engineered to maximize withdrawal resistance by mechanically locking into wood fibers. Simpson Strong-Tie connector load values published in their engineering tables are achieved with ring-shank nails. Substituting a smooth-shank nail of identical diameter and length can result in lower actual load capacity than the connector's rated values, which may not meet structural or code requirements for the application.

What is the head diameter of this nail, and why does it matter for connector installation?

This nail has a full round head with a 0.280" diameter. The head size is significant because it must bear properly against the punched holes in Simpson Strong-Tie connector plates. A head that is too small can pull through the connector hole under load, while this correctly sized full round head provides a broad, stable bearing surface that maintains connector integrity under structural loading.

Are these nails compatible with all Simpson Strong-Tie connector products?

These SCNR ring-shank connector nails are developed by Simpson Strong-Tie specifically for use with their connector products. The 0.131" shank diameter, 1-1/2" length, and annular ring shank are engineered to provide depth compatibility with framing members and to achieve maximum load values in stainless-steel connectors. Always verify the specific connector's installation requirements against the nail size specified in its load table to confirm compatibility for your particular application.

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