Simpson Deck-Drive DSV Wood Screw, #10 x 3" with T25 6-Lobe Drive and Quik Guard Coating in Red is a purpose-built fastening solution from Simpson designed for preservative-treated wood decking installations. The red Quik Guard coating blends with natural wood tones while delivering corrosion resistance suited for exterior conditions and certain treated lumber applications. Whether you are building a new deck, replacing boards, securing guard rail posts, or working on a dock or boardwalk project, the DSV's variable thread design and high-low threaded point deliver clean, consistent results in dimensional lumber and fast-growth wood species.

Key Features

• Rimmed Flat Head with Under-Head Nibs - the nibs bite into the wood surface as the screw seats, allowing the head to countersink smoothly and leave a clean, finished appearance without surface tear-out.
• Variable Thread Design - threads are optimized specifically for dimensional lumber and fast-growth wood, helping the screw accommodate the natural swelling and shrinkage cycles common in deck boards over time.
• High-Low Threaded Point - alternating thread heights provide fast, self-starting entry into wood without pre-drilling, reducing installation time and effort on large decking projects.
• T25 6-Lobe Drive Type - the 6-lobe interface provides superior torque transfer and reduces cam-out compared to standard Phillips or square drives, so the bit stays engaged throughout the full drive stroke.
• Quik Guard Coating - provides corrosion resistance for exterior applications and certain preservative-treated wood environments as described by ICC-ES AC257, exposure conditions 1 and 3, protecting the fastener over the life of the deck.
• Red Color Finish - the red tone blends with the natural color palette of wood decking, keeping fastener heads visually discreet in the finished surface.
• Compatible with Quik Drive Auto-Feed System - available in collated strips for use with the Simpson Strong-Tie Quik Drive system, dramatically increasing installation speed on large decking surfaces.
• Low-Torque Thread Profile - the optimized thread geometry reduces resistance during driving, allowing more screws to be driven on a single battery charge compared to conventional deck screws.

Why This Product

• Specifically engineered for preservative-treated decking - the Quik Guard coating meets ICC-ES AC257 requirements for exterior and treated-lumber exposure conditions, making it a code-relevant choice for deck construction where corrosion resistance matters.
• The variable thread shank is designed to flex with the wood rather than against it - fast-growth lumber expands and contracts significantly with moisture changes, and the DSV's shank geometry is built to handle those forces without loosening or cracking the deck board over time.
• Versatile enough for guard rail posts, railing framing, fascia, trim, docks, and boardwalks - not just deck surface boards - giving contractors a single screw solution across multiple phases of an outdoor wood structure project.
• Available in both hand-drive format and collated strips for automated driving systems, so the same screw works whether you are doing precision detail work or high-volume installation across an entire deck field.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length (in.): 3
• Head Diameter (in.): 0.330
• Head Type: Rimmed Flat Head with Nibs
• Drive Type: T25 6-Lobe
• Thread Type: Variable Thread Design
• Point Type: High-Low Threaded Point
• Coating: Quik Guard Coating
• Finish: Quik Guard Coating
• Color: Red
• Appx Count Per Lb: 76

Available Pack Options

• DSVR3R1LB: 1 Lb - includes (1) T25 6-lobe driver bit (replacement driver bit - BIT25T-2-R2)
• DSVR3R5LB: 5 Lb - includes (1) T25 6-lobe driver bit (replacement driver bit - BIT25T-2-R2)
• DSVR3R350: 350 Pk - includes (1) T25 6-lobe driver bit (replacement driver bit - BIT25T-2-R2)
• DSVR3MB: 1750 Pk - includes (2) T25 6-lobe driver bits (replacement driver bit - BIT25T-2-R2)

Approved Applications

• Fastening Wood-to-Wood
• DIY/Home Projects
• Decks - Deck Boards Wood
• General Framing
• Decks - Guard Rail Post to Deck
• Dock and Boardwalk
• Furniture
• Decks - Railing Post-to-Deck Framing

Frequently Asked Questions

Is the Quik Guard coating appropriate for use with pressure-treated lumber?

Yes. The Quik Guard coating provides corrosion resistance for exterior applications and certain preservative-treated wood environments as described by ICC-ES AC257, exposure conditions 1 and 3. Always verify that your specific treated lumber and exposure condition fall within those parameters before installation.

Do I need to pre-drill before driving these screws into deck boards?

No. The high-low threaded point is designed to self-start in wood without pre-drilling, providing fast entry into dimensional lumber and reducing prep time during deck board installation.

Can these screws be used with an auto-feed driving system?

Yes. The DSV Wood screw is available in collated strips compatible with the Simpson Strong-Tie Quik Drive auto-feed screw driving system, making it suitable for both hand-drive installation and high-volume collated driving applications.

Why is the thread design described as "variable" and what does that mean for wood deck boards?

The variable thread design means the thread pitch or profile is optimized to work specifically with dimensional and fast-growth lumber. This shank design is engineered to handle the swelling and shrinkage that naturally occurs in wood deck boards due to moisture changes, helping maintain a secure hold over the long term rather than loosening as the wood moves.