Simpson Strong-Tie Composite-to-Steel Deck Screws are engineered for building composite decks on steel framing systems. Designed with a drill tip that powers through double 14 ga. steel without predrilling, these screws make installation faster and easier while ensuring a clean, professional finish on the deck surface.

The special thread design eliminates mushrooming in composite boards, so the surface stays smooth and flush. Paired with the Quik Drive® auto-feed system, you’ll get efficient, secure fastening across the entire project. Finished with Quik Guard® coating for medium-level corrosion resistance, these screws are also an approved fastener for New Castle Steel™ deck framing by New Castle Building Group®.

Key Features

• No predrilling required – Drives easily through double 14 ga. steel box beam
• Clean finish – Composite boards install flush with no mushrooming
• Quik Drive® system – Holds screws securely for faster, more consistent fastening
• #2 square drive – Reliable engagement (replacement bit BIT2SU)
• Quik Guard® coating – Medium-level corrosion resistance; not for marine use