Simpson Deck-Drive DSV Wood Screw - #10 x 2-1/2" in Red is a purpose-built fastener from Simpson Strong-Tie designed for preservative-treated wood decking applications. Featuring a T25 6-lobe drive, variable thread design, and Quik Guard corrosion-resistant coating, this red screw countersinks cleanly into wood deck boards, fascia, and trim while resisting the swelling and shrinkage forces common in fast-growth dimensional lumber. Whether you are building a new deck, replacing boards, or securing railing posts, this screw delivers a clean finished appearance and dependable holding strength.

Key Features

• Rimmed Flat Head with Nibs - the under-head nibs allow the screw to countersink smoothly and cleanly into wood deck boards without pre-drilling, leaving a flush, finished surface.
• Variable Thread Design - engineered to accommodate the natural swelling and shrinkage of fast-growth lumber, maintaining a secure, lasting connection over time.
• High-Low Threaded Point - the alternating thread geometry provides a fast start and aggressive bite, reducing driving effort and helping prevent wood splitting at the board edge.
• T25 6-Lobe Drive Type - the 6-lobe interface transfers torque efficiently, reducing cam-out and driver bit wear during long deck-board installation runs.
• Quik Guard Coating - provides corrosion resistance suited for exterior and certain preservative-treated wood applications, helping the screw hold up in demanding outdoor conditions.
• Red Color - the red finish blends visually with many natural and stained wood deck surfaces, creating a less obtrusive appearance once driven.
• Compatible with Quik Drive Auto-Feed System - available in hand-drive format and collated strips for use with the Simpson Strong-Tie Quik Drive auto-feed screw driving system, boosting productivity on large deck projects.

Why This Product

• Specifically designed for preservative-treated decking - the Quik Guard coating and variable thread design address the two biggest challenges of outdoor deck construction: corrosion from treated lumber chemicals and fastener loosening caused by wood movement.
• Countersinks without pre-drilling - the rimmed flat head with under-head nibs drives flush into today's wood deck boards in a single step, saving time and producing a cleaner finished surface on deck boards, fascia, and trim.
• Versatile across multiple decking tasks - approved for deck boards, guard rail posts, railing post-to-framing connections, furniture, and general wood-to-wood fastening, making this one screw suitable for nearly every phase of a deck build.
• Works hand-drive or with auto-feed equipment - compatibility with the Quik Drive collated auto-feed system means this screw scales from small DIY projects to high-volume professional deck installations without switching fasteners.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length: 2-1/2 in.
• Head Diameter: 0.330 in.
• 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
• Approx. Count Per Lb: 91

Available Pack Options

• DSVR212R1LB: 1 Lb - includes (1) T25 6-lobe driver bit (replacement driver bit - BIT25T-2-R2)
• DSVR212R350: 350 Pk - includes (1) T25 6-lobe driver bit (replacement driver bit - BIT25T-2-R2)
• DSVR212R5LB: 5 Lb - includes (1) T25 6-lobe driver bit (replacement driver bit - BIT25T-2-R2)
• DSVR212MB: 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
• Decks - Guard Rail Post to Deck
• Furniture
• Decks - Railing Post-to-Deck Framing

Frequently Asked Questions

What coating does this screw have, and is it suitable for pressure-treated lumber?

This screw features Quik Guard Coating, which is designed to provide corrosion resistance for exterior and certain preservative-treated wood applications. It is well-suited to the chemical environment present in today's preservative-treated decking materials.

What driver bit does this screw require?

This screw uses a T25 6-lobe drive. A T25 driver bit is required for installation. The 6-lobe interface helps reduce cam-out during driving.

Can this screw be used with an auto-feed driving system?

Yes. The Deck-Drive DSV Wood screw is available in hand-drive format as well as in collated strips for use with the Simpson Strong-Tie Quik Drive auto-feed screw driving system, making it a practical choice for high-volume decking installations.

Why does this screw have a variable thread design?

The variable thread design is engineered specifically to handle the swelling and shrinkage that naturally occurs in fast-growth lumber and wood decking products. This thread geometry helps maintain a tight, secure connection even as the wood moves seasonally, reducing the risk of fastener loosening or deck board separation over time.