The Simpson Strong-Tie Trim-Head Square Drive Wood Screw is built for decking applications where both strength and appearance matter. Designed with a low-profile trim head that sits flush with the surface, it provides a clean, professional look while holding deck boards securely in place. A Type 17 point ensures fast starts, and coarse threads along the shank pull boards tightly to joists for a strong, lasting connection.

Engineered for reliability, these screws feature a square-drive recess for slip-free engagement that reduces cam-out and speeds up installation. Engineered in Type 316 stainless steel for corrosion resistance, they’re also offered in collated strips for Quik Drive® systems and in hand-drive versions with optional painted heads for seamless finishes.

Key Features

• Trim-style head - sits flush for a clean, low-profile appearance
• Square-drive design - provides secure driver engagement and easier installation
• Type 17 point - allows quick starts and reduces the need for pre-drilling
• Coarse shank threads - pull boards tightly to framing for maximum hold
• 316 Stainless steel - for strong corrosion resistance