The Simpson Deck-Drive DCSD Composite-to-Steel Screw is engineered by Simpson for one specific job: fastening composite deck boards directly to steel deck framing with speed, consistency, and a clean finished result. Collated on a plastic strip for use with the Quik Drive system, this #10 x 2-3/8 in. screw features a pilot point, variable thread design, and cap head geometry that work together to pull composite decking tight against metal joists without surface damage - no predrilling required, even through double 14-gauge steel box beams. The Quik Guard coating provides medium-level corrosion resistance for residential and light-commercial decking applications where marine exposure is not a concern.

Key Features

• Drives through double 14 ga. steel box beam without predrilling - eliminates a separate drilling step, reducing labor and keeping the installation moving faster across the entire deck surface.
• Cap head design with no mushrooming - the screw seats flush and clean into composite decking, leaving a finished surface that requires no touch-up or patching around the fastener.
• Plastic strip collation for the Quik Drive PRO300SG2 system - the Quik Drive system holds each screw securely as it drills through the metal joist, delivering a more consistent depth and angle on every single fastener.
• #2 undersized square drive with included driver bit - the undersized square recess provides secure bit engagement that resists cam-out, especially important when driving screws with protective coatings; a replacement bit (model BIT2SU) is available separately.
• Pilot point tip - starts on contact and centers itself before threading, reducing screw walk on steel framing and improving placement accuracy.
• Variable thread design - thread geometry optimized for composite-to-steel attachment pulls the board down firmly and holds it securely without over-driving into the decking material.
• Quik Guard coating for medium-level corrosion resistance - suitable for standard outdoor decking environments; note that this coating is not recommended for marine or saltwater-adjacent installations.

Why This Product

• Purpose-built for composite decking on steel framing - unlike general-purpose screws, the DCSD is designed specifically for the composite-to-steel application, combining a cap head, pilot point, and variable thread in a single fastener that handles the job from start to finish without adaptation or compromise.
• Collated format dramatically reduces installation time - paired with the Quik Drive system, the plastic strip collation means less stopping, less reloading, and a more consistent driving depth across an entire deck, which matters on large-scale projects where fatigue and pace both affect quality.
• No predrilling through double 14-gauge steel saves real time on the job - the ability to skip a predrilling pass on every joist translates directly into fewer tools to manage, fewer passes across the deck, and a faster overall installation timeline.
• Clean surface result protects the look of premium composite decking - the no-mushrooming cap head leaves composite boards looking exactly as intended, which is critical when the decking material itself represents a significant investment in curb appeal and long-term appearance.

Specifications

• Model Number: DCSD238SRD01
• Brand: Simpson Strong-Tie
• 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: Red 01
• 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 (Red 01)
• Driver bit included (replacement bit model: BIT2SU)

Frequently Asked Questions

Does this screw require predrilling through steel framing?

No. The Deck-Drive DCSD screw is designed to drive easily through double 14-gauge steel box beams without predrilling, saving time and reducing labor on composite decking installations.

What coating does this screw have, and is it suitable for marine environments?

This screw features a Quik Guard coating that provides medium-level corrosion resistance. It is not recommended for use in marine environments.

What tool system is this collated screw compatible with?

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.

What drive type does this screw use, and is a bit included?

This screw uses a #2 undersized square drive, designed for secure bit engagement and easy driving - particularly for fasteners with protective coatings. A driver bit is included with purchase; the replacement bit model is BIT2SU.

Downloads and Resources

• Composite-Decking Color Cross-Reference