Simpson 8d x 2-3/8 in. 31-34 Deg. Ring-Shank Nail 304 Stainless 1000-Pack brings professional holding strength and long-term corrosion resistance to framing, structural, and outdoor wood construction projects. Made by Simpson from Type 304 stainless steel, these annular ring-shank nails are designed for environments where moisture, coastal exposure, or treated lumber would compromise standard steel fasteners - delivering a reliable, lasting connection where it matters most.

Key Features

• Annular ring shank design - increases withdrawal resistance compared to smooth-shank nails, so fastened assemblies stay secure under load and over time
• Type 304 stainless steel construction - provides high corrosion resistance for applications exposed to moisture, salt air, or chemically treated wood where standard nails would degrade prematurely
• Full round head - delivers maximum bearing surface on the wood face, supporting consistent drive performance and reducing the risk of pull-through
• Checkered head pattern - blends with wood grain, cuts glare from sunlight, and accepts surface finishes for a cleaner finished appearance
• 31 deg. - 34 deg. plastic strip collation - compatible with a wide range of popular pneumatic framing nailers, giving contractors flexibility across jobsite tool setups

Why This Product

• Built for corrosive environments - Type 304 stainless steel construction makes these nails a dependable choice for coastal builds, exterior framing, and applications involving treated lumber where fastener integrity is non-negotiable
• Superior grip where smooth shanks fall short - the annular ring shank significantly increases withdrawal resistance, making these nails well-suited for structural connections and high-stress assemblies that demand more than a basic fastener can offer
• Broad nailer compatibility - the 31 deg. - 34 deg. plastic strip collation works with nailers from Bosch, Bostitch, DeWalt, Makita, Paslode, Senco, and others, so crews can use what they already own without switching equipment
• Finish-friendly head design - the checkered full round head reduces glare and accepts surface finishes, making these nails a practical choice for visible or semi-exposed work where appearance alongside performance is a priority

Specifications

• Model Number: S12A237P31
• Penny Size: 8d
• Length: 2-3/8 in.
• Head Diameter: 9/32 in.
• Shank Diameter: 0.113 in.
• Shank Type: Annular-Ring Shank
• Head Type: Full Round Head
• Head Pattern: Checkered
• Coating/Material: Type 304 Stainless Steel
• Collation Angle: 31 deg. - 34 deg. Plastic Strip
• Packaging Quantity: 1000

Approved Applications

• Compatible with Bosch SN350-34C
• Compatible with Bostitch F33PT
• Compatible with DeWalt D51825, D51822
• Compatible with Grip-Rite GRTFC83 (up to 3-1/4"), GRTCH350
• Compatible with Hitachi NR83AA3 (up to 3-1/4"), NR90ADPR, NR90GC2
• Compatible with Makita AN943
• Compatible with Max SN883CH/34 (up to 3-1/4"), SN890CH/34
• Compatible with Paslode PF350S, CF325 (up to 3-1/4"), F350S, 900420 (up to 3-1/4")
• Compatible with Porter Cable FC350A
• Compatible with Ridgid R350CHA
• Compatible with Senco SN901XP (up to 3-1/4"), SN951XP, GT90CH, FramePro601, FramePro701XP

Frequently Asked Questions

What material are these nails made from, and why does it matter?

These nails are made from Type 304 stainless steel, which is specifically chosen for applications requiring high corrosion resistance. This makes them well-suited for use in environments exposed to moisture, coastal conditions, or treated lumber where standard steel fasteners may corrode prematurely.

What is the benefit of the annular ring shank on these nails?

The annular ring shank increases withdrawal resistance compared to smooth-shank nails, providing a significantly more secure attachment once driven. This is especially important in structural framing applications where long-term holding power is essential.

What collation angle do these nails use, and which nailers are they compatible with?

These nails use a 31 deg. - 34 deg. plastic strip collation angle. They are compatible with a broad range of professional framing nailers from brands including Bosch, Bostitch, DeWalt, Grip-Rite, Hitachi, Makita, Max, Paslode, Porter Cable, Ridgid, and Senco. Always check your specific tool model against the compatibility list before use.

What does the checkered head pattern on these nails do?

The checkered pattern on the full round head blends with wood grain, reduces glare from sunlight, and accepts surface finishes, helping the fastener integrate cleanly into finished woodwork without standing out visually.

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