Simpson 2-1/2" 8d Smooth Shank Common Nail in 304 Stainless Steel is a precision-crafted 10-gauge fastener built for decking, framing, and general wood construction where corrosion resistance and holding strength matter. The full round head and diamond point drive cleanly and seat flush, making this nail a reliable choice for structural and finish applications in demanding environments. 304 stainless steel construction means these nails stand up to moisture, humidity, and the corrosive effects of treated lumber - delivering lasting performance in both interior and exterior projects.

Key Features

• 304 Stainless Steel material - resists rust, oxidation, and corrosion from moisture and treated wood chemicals, extending the life of the connection in outdoor and high-humidity applications
• Smooth shank profile - drives easily through wood fiber for fast installation across a wide range of general construction and decking applications
• 10-gauge wire diameter - provides substantial shank thickness for strong shear resistance in structural wood connections
• Full round head - maximizes bearing surface against the wood for a secure, stable fastening that resists pull-through
• Diamond point tip - self-starts cleanly on contact with the workpiece, reducing splitting and improving drive accuracy
• 2-1/2" length (8d penny size) - ideal nail length for single and double shear wood-to-wood connections common in deck framing and general carpentry
• Smooth head pattern - sits flush and cleanly for a professional finish on visible decking surfaces
• Made in the United States - domestic manufacturing ensures consistent quality control and dimensional accuracy

Why This Product

• Stainless steel construction makes this nail the right choice when fastening into pressure-treated lumber, composite decking, or any application where galvanic corrosion from lesser coatings would compromise the connection over time.
• The 8d common nail size at 2-1/2" length is one of the most widely called-for dimensions in deck framing, joist construction, and general wood framing - matching code-specified fastener requirements for many standard structural connections.
• Simpson's 304 stainless steel formulation is recommended for permanent wood foundation construction per ANSI/AWC Permanent Wood Foundations Design Specifications, making this nail appropriate for engineered and code-compliant builds.
• The combination of smooth shank and diamond point allows for consistent hand-nailing or pneumatic driving without pre-drilling, saving installation time across high-volume framing and decking projects.

Specifications

• Brand: Simpson Strong-Tie
• Material/Coating: Type 304 Stainless Steel
• Gauge: 10
• Penny Size: 8d
• Length: 2-1/2 in.
• Head Diameter: 9/32 in.
• Shank Diameter: 0.131 in.
• Shank Type: Smooth Shank
• Head Type: Full Round Head
• Head Pattern: Smooth Head
• Point Type: Diamond Point
• Approx. Count per Lb.: 94
• Country of Origin: United States

Available Pack Options

• S8CN1: 1 Lb (94)
• S8CN5: 5 Lb (470)
• S8CNB: 25 Lb (2350)

Frequently Asked Questions

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

Both grades offer strong corrosion resistance, but 316 stainless steel contains added molybdenum which provides superior resistance to chlorides and saltwater environments. 304 stainless steel is well-suited for most outdoor, decking, and treated-lumber applications away from direct marine or coastal salt exposure. For seaside construction or environments with heavy salt or chemical exposure, 316 stainless steel is typically the preferred choice.

Are these nails recommended for use with pressure-treated lumber?

Yes. Stainless steel nails are compatible with pressure-treated lumber, including modern ACQ and CA treated wood that can corrode lesser fastener materials. The 304 stainless steel construction resists the chemical compounds found in treated wood, maintaining connection integrity over the life of the structure. Simpson's stainless steel nails are also recommended for permanent wood foundation construction per ANSI/AWC specifications.

Can these nails be driven with a pneumatic nail gun?

The smooth shank and diamond point on this common nail are compatible with hand-nailing and many pneumatic framing nailers that accept 8d common nails at 2-1/2" length. Always confirm your nailer's collation type, magazine angle, and accepted nail gauge (0.131 in. shank diameter) before loading. Consult your nailer's documentation for compatibility with stainless steel fasteners, as some tools may have specific requirements.

Where are these nails manufactured?

These Simpson stainless steel common nails are manufactured in the United States, ensuring consistent dimensional quality and adherence to the specifications listed above.

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