Product Description
Simpson 4-1/2 in. 30d Annular Ring Shank Common Nail, Type 316 Stainless Steel is a heavy-duty fastener from Simpson engineered for demanding exterior and permanent wood foundation applications. Forged from Type 316 stainless steel and built with an annular ring shank profile, this common nail delivers severe-level corrosion resistance alongside exceptional withdrawal resistance - making it a trusted choice for long-lasting wood-to-wood fastening in harsh, moisture-prone, or salt-air environments.
Key Features
- Annular ring shank - increases withdrawal resistance so the nail holds firmly in place over time, reducing the risk of loosening under load or environmental stress in structural and exterior applications.
- Type 316 stainless steel construction - provides severe-level corrosion resistance, keeping fasteners reliable in coastal, wet, or chemically aggressive environments where standard nails would degrade.
- ANSI/AWC Permanent Wood Foundations Design Specification alignment - stainless steel nails are recommended for permanent wood foundation construction, making this nail a code-consistent choice for those critical applications.
- Full round head with 7/16 in. diameter - provides a broad bearing surface for strong, secure seating against the wood and consistent driving performance.
- Diamond point tip - promotes cleaner wood penetration and reduces splitting during installation, especially in dense lumber.
- 6-gauge, 0.203 in. shank diameter - delivers the shank strength needed for heavy framing and structural wood-to-wood connections where fastener integrity matters.
- 4-1/2 in. length / 30d penny size - sized for deep penetration in thick framing members, ensuring a grip that supports structural load demands.
- Made in the United States by Simpson - manufactured to consistent quality standards from a brand recognized for structural fastener engineering.
Why This Product
- Severe-level corrosion resistance where it counts most - Type 316 stainless steel goes beyond standard corrosion protection, making these ring shank nails well suited for permanent wood foundations, exterior framing, and coastal construction where moisture or salt exposure can compromise lesser fasteners over time.
- Superior holding power versus smooth shank alternatives - the annular ring shank design mechanically locks into wood fibers, significantly increasing withdrawal resistance and keeping connections tight through seasonal movement, loading, and long-term service.
- A specification-backed choice for permanent wood foundations - alignment with the ANSI/AWC Permanent Wood Foundations Design Specifications gives builders and contractors confidence that these nails meet recognized industry guidance for one of the most demanding residential fastening applications.
- Built for structural wood-to-wood fastening - the combination of 30d sizing, full round head geometry, and diamond point makes this nail practical for heavy framing work where both driving efficiency and connection strength are priorities.
Specifications
- MPN: T30ACNB
- Brand: Simpson Strong-Tie
- Material: Type 316 Stainless Steel
- Finish: Type 316 Stainless Steel
- Gauge: 6
- Penny Size: 30d
- Length: 4-1/2 in.
- Head Type: Full Round Head
- Head Diameter: 7/16 in.
- Shank Type: Annular-Ring Shank
- Shank Diameter: 0.203 in.
- Point Type: Diamond Point
- Pack Size: 25 lb.
- Country of Origin: United States
Approved Applications
- Fastening Wood-to-Wood
Frequently Asked Questions
What makes the annular ring shank beneficial compared to a smooth shank nail?
The annular ring shank increases withdrawal resistance to provide a secure attachment, meaning the nail is far more resistant to being pulled out of the wood over time compared to a standard smooth shank nail - a critical advantage in structural and exterior applications.
Why is Type 316 stainless steel specified for this nail?
Type 316 stainless steel provides severe-level corrosion resistance, making these nails well suited for exterior environments and applications where exposure to moisture, salt air, or corrosive elements is a concern.
Are these nails approved for use in permanent wood foundation construction?
Yes. Stainless-steel nails are recommended for construction of permanent wood foundations by the ANSI/AWC Permanent Wood Foundations Design Specifications, making this nail a code-aligned choice for those demanding applications.
What are the key physical dimensions of the T30ACNB nail?
This nail features a 4-1/2-inch length, a 0.203-inch shank diameter, a 7/16-inch full round head diameter, a diamond point, and is made from 6-gauge steel. It is sold in a 25 lb. quantity.
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