Simpson 1-1/2 in. 4d Annular Ring Shank Common Nail in Type 304 Stainless Steel is a heavy-duty fastener built for wood-to-wood and framing applications where secure, long-lasting attachment is essential. Crafted from Type 304 stainless steel, this 12-gauge nail delivers outstanding corrosion resistance that stands up to outdoor exposure and demanding construction environments - making it an ideal choice for exterior framing, wood structures, and projects requiring a durable, rust-resistant fastening solution.

Key Features

• Annular ring shank design - increases withdrawal resistance compared to smooth-shank nails, providing a stronger, more secure grip in wood-to-wood connections that resists loosening over time
• Type 304 stainless steel material - delivers reliable corrosion resistance for exterior and outdoor applications, keeping connections strong even in moisture-exposed conditions
• 12-gauge shank at 0.113 in. diameter - provides sturdy holding power appropriate for framing and structural wood fastening tasks
• Full round head at 1/4 in. diameter - maximizes bearing surface for a flush, stable seat against wood surfaces, reducing the risk of pull-through
• Diamond point tip - enables clean, precise nail entry that minimizes wood splitting during installation
• 1-1/2 in. (4d) length - sized for common wood framing and fastening work where a compact, strong nail is required
• Made in the United States - domestic manufacturing supports consistent quality standards for professional construction use

Why This Product

• The annular ring shank design solves one of the most common fastening failures - nail withdrawal - by mechanically locking into wood fibers for a hold that resists pulling out under load or structural movement
• Type 304 stainless steel construction means this nail resists rust and corrosion in outdoor and moisture-exposed environments, extending the life of fastened connections without surface coatings that can chip or wear away
• The combination of a full round head and diamond point makes installation faster and more consistent - the sharp point starts easily without splitting, and the broad head seats securely without countersinking too deep
• At 12 gauge with an annular ring shank, this nail is suited for both general wood-to-wood fastening and structural wood framing, giving contractors and builders a single fastener that covers multiple exterior and framing applications

Specifications

• Brand: Simpson Strong-Tie
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Gauge: 12
• Penny Size: 4d
• Length: 1-1/2 in.
• Head Diameter: 1/4 in.
• Shank Diameter: 0.113 in.
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Point Type: Diamond Point
• Approx. Count Per Lb: 228
• Country of Origin: United States

Available Pack Options

• S4ACN1: 1 Lb (228)
• S4ACN5: 5 Lb (1140)
• S4ACNB: 25 Lb (5700)

Approved Applications

• Fastening Wood-to-Wood
• Framing - Wood

Frequently Asked Questions

What makes an annular ring shank nail different from a smooth shank nail?

An annular ring shank nail features a series of rings along the shank that mechanically interlock with wood fibers as the nail is driven in. This significantly increases withdrawal resistance compared to a smooth-shank nail, meaning the connection is far less likely to loosen or pull apart under load, vibration, or structural movement - making it a stronger choice for framing and permanent wood-to-wood fastening.

Is Type 304 stainless steel appropriate for outdoor and exterior applications?

Yes. Type 304 stainless steel provides reliable corrosion resistance that makes these nails well suited for exterior construction, outdoor wood framing, and environments where moisture exposure is a concern. For seaside or coastal environments with salt air exposure, Type 316 stainless steel is generally recommended for superior corrosion resistance - but Type 304 performs well in most standard outdoor and exterior settings.

How many nails are in a pound of these fasteners?

There are approximately 228 nails per pound for this 1-1/2 in. 12-gauge annular ring shank common nail in Type 304 stainless steel. This figure can help estimate quantities needed for larger framing or fastening projects.

Can these nails be used for wood framing projects?

Yes. These nails are specifically approved for Framing - Wood and Fastening Wood-to-Wood applications. The full round head, diamond point, and annular ring shank work together to provide secure, efficient fastening in wood framing work, with the stainless steel material ensuring durability in both interior and exterior framing environments.