Simpson 1-1/2" 4d Smooth Shank Common Nail in 316 Stainless Steel is a 12-gauge fastener built for demanding wood construction and decking applications where corrosion resistance is critical. Crafted from Type 316 stainless steel, this nail delivers superior performance in coastal, seaside, and high-moisture environments where standard fasteners would quickly degrade. The smooth shank and full round head make it a reliable general-purpose construction nail trusted by contractors and builders who need consistent, code-compatible results.

Key Features

• Type 316 stainless steel construction - provides superior corrosion resistance compared to standard stainless grades, making it the right choice for seaside, saltwater-exposed, and chemically aggressive environments
• 12-gauge shank at 0.113" diameter - delivers consistent holding strength in general wood construction and decking without splitting lighter lumber
• 1-1/2" length (4d penny size) - sized for finish work, thin lumber connections, and applications where a compact fastener is required for precise placement
• Smooth shank design - allows for straightforward installation and consistent drive depth across a variety of wood construction applications
• Full round head with smooth head pattern - provides a broad bearing surface that distributes load evenly and reduces the chance of pull-through
• Diamond point tip - pierces wood cleanly to reduce splitting during installation, especially in dense or treated lumber
• 1/4" head diameter - balances holding capacity with a low-profile finish suitable for visible decking and trim applications
• Made in the United States - domestic manufacturing supports consistent quality standards for professional construction use

Why This Product

• Engineered for coastal and seaside construction - Type 316 stainless steel is specifically recommended for applications exposed to saltwater spray, ocean air, and elevated moisture conditions where lesser materials corrode prematurely
• Meets permanent wood foundation requirements - stainless steel nails are recommended for permanent wood foundation construction per ANSI/AWC Permanent Wood Foundations Design Specifications, making this nail a reliable option for code-conscious builders
• Versatile for general wood construction - the smooth shank and common nail profile make this fastener adaptable across decking, framing, and light structural applications without the need for specialized tooling
• Simpson Strong-Tie quality in stainless steel - backed by a brand recognized in structural fasteners, this nail is designed to perform alongside other Simpson framing hardware and connectors

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 316 Stainless Steel
• Gauge: 12
• Penny Size: 4d
• Length: 1-1/2 in.
• Head Diameter: 1/4 in.
• Shank Diameter: 0.113 in.
• Shank Type: Smooth Shank
• Head Type: Full Round Head
• Head Pattern: Smooth Head
• Point Type: Diamond Point
• Approx. Count per Lb.: 228
• Country of Origin: United States

Available Pack Options

• T4CN1: 1 Lb (228)
• T4CNB: 25 Lb (5700)

Frequently Asked Questions

What makes Type 316 stainless steel different from Type 304 stainless steel for nails?

Type 316 stainless steel contains a higher molybdenum content that gives it enhanced resistance to chlorides, saltwater, and corrosive chemicals compared to Type 304. This makes 316 stainless the preferred choice for seaside structures, docks, coastal decking, and any application where the fastener will be exposed to salt air or marine conditions over time.

Are stainless steel nails required for permanent wood foundations?

Yes - stainless steel nails are recommended for permanent wood foundation construction per the ANSI/AWC Permanent Wood Foundations Design Specifications. This 316 stainless steel nail meets that material requirement and is appropriate for builders working to those guidelines.

What is the shank diameter and penny size of this nail?

This nail has a shank diameter of 0.113 in. and is classified as a 4d (four-penny) nail, measuring 1-1/2 in. in length. It is a 12-gauge fastener with a 1/4 in. full round head and a diamond point tip.

What is the approximate count per pound for this nail?

There are approximately 228 nails per pound. This figure can help you estimate how many you will need for a given project based on weight-based quantities.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.