The Simpson Deck-Drive DCSD Composite-to-Steel Collated Screw, #10 x 2-3/8 in., Quik Guard Gray 04 is purpose-built for fastening composite decking to steel deck framing with speed and precision. Engineered by Simpson for use with the Quik Drive auto-feed system, these plastic-strip collated screws eliminate the need for predrilling through double 14-gauge steel box beams, allowing installers to work faster with more consistent results across the entire deck surface. The cap head profile and variable thread design work together to seat each fastener cleanly, leaving a finished surface free of mushrooming - a common problem with screws not designed for composite-to-steel applications.

Key Features

• Drives through double 14 ga. steel box beam without predrilling - eliminates a time-consuming prep step, significantly speeding up installation on steel-framed deck projects.
• Cap head design with no mushrooming - seats flush and cleanly into composite decking for a polished, professional finish that requires no touch-up.
• Quik Drive system compatibility holds the screw securely during driving - reduces bit slippage and inconsistent depth, delivering a more uniform installation from board to board.
• #2 undersized square drive with included driver bit - provides secure bit engagement and easier driving, especially critical when working with protective coatings that can increase friction; replacement bit model BIT2SU available separately.
• Plastic-strip collation - feeds smoothly through the Quik Drive auto-feed attachment, reducing hand fatigue and keeping the workflow moving without constant reloading.
• Quik Guard coating for medium-level corrosion resistance - suited for standard outdoor deck environments; note that this coating is not recommended for marine or high-salt-exposure settings.
• Gray 04 color - blends with common gray composite decking profiles to minimize fastener visibility on the finished deck surface.
• Pilot point tip with variable thread design - starts accurately without wandering and threads efficiently through both composite and steel layers for a secure, stable connection.

Why This Product

• No predrilling required through steel framing - the DCSD screw is specifically engineered to penetrate double 14-gauge steel box beams in a single step, saving measurable time on every joist across the entire deck build.
• Designed as a complete composite-to-steel fastening system - compatible with the Simpson Quik Drive PRO300SG2 decking system and shipped with a driver bit included, so installers have everything needed to get started without sourcing additional accessories.
• Clean surface results are built into the design - the cap head geometry prevents mushrooming in composite decking material, meaning the finished deck looks intentional rather than requiring remediation after fastening.
• Application-matched corrosion protection - the Quik Guard coating provides appropriate outdoor durability for residential and commercial deck construction in standard environments, without paying for higher-grade coatings that the application does not require.

Specifications

• Model Number (MPN): DCSD238SGR04
• Screw Size: #10
• Length: 2-3/8 in.
• Head Type: Cap Head
• Head Diameter: 0.254 in.
• Drive Type: #2 Square, Undersized
• Thread Type: Variable Thread Design
• Point Type: Pilot Point
• Collation Type: Plastic Strip
• Coating/Finish: Quik Guard Coating
• Color: Gray 04
• Compatible Tool: Simpson Strong-Tie Quik Drive PRO300SG2 decking system
• Package Quantity: 1,000

Approved Applications

• Decks - Deck Boards Composite

What's Included

• 1,000 collated #10 x 2-3/8 in. Deck-Drive DCSD Composite-to-Steel screws
• Driver bit included (replacement bit model: BIT2SU)

Frequently Asked Questions

Do these screws require predrilling through steel framing?

No. The Deck-Drive DCSD Composite-to-Steel screw drives easily through double 14-gauge steel box beams without any predrilling required, saving significant time during installation.

What drive type and bit are used with these screws?

These screws use a #2 undersized square drive, which provides secure bit engagement and easy driving - especially important for fasteners with protective coatings. A driver bit is included with the package; the replacement bit model is BIT2SU.

What Quik Drive tool is compatible with these collated screws?

These screws are compatible with the Simpson Strong-Tie Quik Drive PRO300SG2 decking system. The Quik Drive system holds the screw securely as it drills through the metal joist for a more consistent installation.

Are these screws suitable for marine or high-corrosion environments?

The Quik Guard coating provides medium-level corrosion resistance and is not recommended for use in marine environments. For marine or highly corrosive applications, a higher-corrosion-resistance fastener should be selected.

Downloads and Resources

• Composite-Decking Color Cross-Reference