Simpson 3d Cedar Trim Nail in 1-1/4" 304 Stainless Steel by Simpson Strong-Tie is a precision-engineered finishing fastener purpose-built for cedar trim work, millwork, and woven corner applications. Crafted from Type 304 stainless steel, this 15-gauge annular-ring shank nail delivers lasting corrosion resistance in exterior environments where moisture and weathering would compromise standard fasteners. The ultra-thin 0.072" shank diameter and low-profile 9/64" round head keep trim clean and unobtrusive, while the diamond point and annular-ring thread combine to minimize splitting and maximize holding power in cedar and similar finish materials.

Key Features

• Type 304 Stainless Steel material - provides strong corrosion resistance for exterior trim and finish applications exposed to moisture and the elements, extending the life of the fastened assembly
• 15-gauge, 0.072" shank diameter - ultra-thin profile reduces the risk of splitting cedar and delicate trim boards during installation, preserving the appearance of finished surfaces
• Annular-ring shank - the threaded ring pattern locks into wood fibers for superior withdrawal resistance compared to smooth-shank nails, keeping trim securely in place over time
• 9/64" round head with checkered pattern - low-profile head sits close to the surface for a clean, unobtrusive finished look, while the checkered face improves hammer engagement and reduces slipping
• Diamond point tip - blunt diamond point helps minimize wood splitting when driving through cedar trim and millwork materials
• 1-1/4" length (3d penny size) - sized specifically for cedar trim and woven corner work, providing adequate penetration without over-driving through thin stock
• Made in the United States - domestic manufacture supports consistent quality control standards across each fastener

Why This Product

• Designed specifically to fashion woven corners in cedar trim applications - this nail is not a general-purpose fastener, but a purpose-built solution for the exact geometry and wood behavior that cedar corner work demands
• The combination of an annular-ring shank and Type 304 stainless steel means the fastener resists both pull-out forces and the corrosion that outdoor and cedar-adjacent environments cause over time, reducing callbacks and maintenance
• At 0.072" shank diameter with a 9/64" head, this nail is engineered to stay nearly invisible in finished trim - ideal for millwork and decorative exterior applications where hardware visibility is undesirable
• With approximately 550 nails per pound, this fastener is well-suited for trim and millwork projects where many fasteners are needed - making it a practical choice for both professional contractors and finish carpenters

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Gauge: 15
• Penny Size: 3d
• Length: 1-1/4 in.
• Shank Diameter: 0.072 in.
• Shank Type: Annular-Ring Shank
• Head Type: Round Head
• Head Pattern: Checkered
• Head Diameter: 9/64 in.
• Point Type: Diamond Point
• Approx. Count Per Lb: 550
• Country of Origin: United States

Available Pack Options

• S3ACDRWVR1: 1 Lb (550)
• S3ACDRWVR5: 5 Lb (2750)

Approved Applications

• Finishing, Millwork and Trim

Frequently Asked Questions

Why is Type 304 stainless steel recommended for cedar trim applications?

Cedar contains natural oils and tannins that can react with standard steel fasteners, causing staining and premature corrosion. Type 304 stainless steel resists this reaction, making it a reliable choice for exterior cedar trim and finish work where long-term performance and appearance are important.

What does the annular-ring shank do compared to a smooth-shank nail?

The annular-ring shank features a series of rings along the shank that grip wood fibers as the nail is driven in. This mechanical interlock significantly increases withdrawal resistance compared to a smooth-shank nail, helping trim boards stay firmly fastened even as wood expands and contracts with seasonal moisture changes.

What is this cedar trim nail specifically designed to do?

This nail is designed to fashion woven corners - a specific cedar trim technique. Its ultra-thin 0.072" shank diameter and 9/64" low-profile round head work together to minimize splitting and keep the fastener nearly invisible in the finished trim surface.

Should I use a different stainless steel grade for seaside or coastal installations?

Type 304 stainless steel performs well in many exterior environments. For installations near saltwater, coastal areas, or environments with elevated chloride exposure, a Type 316 stainless steel fastener is generally the preferred choice due to its enhanced resistance to pitting and crevice corrosion in those more aggressive conditions.

Note: Product dimensions may differ from picture. Please refer to the specifications above for exact measurements.