Simpson Strong-Tie SDS Screw 1/4" x 4-1/2"

Designed for demanding wood-to-wood and engineered-wood connections, the Simpson Strong-Tie SDS Screw (Model SDS25412MB) delivers exceptional holding power and long-lasting corrosion resistance. Its heavy-duty formulation installs quickly—no pre-drilling required—thanks to the patented CUT point, minimizing torque and speeding up every fastening application. Whether you’re building decks, framing, or installing structural connectors, this screw helps you get the job done right the first time.

Key Features

• 1/4" diameter × 4-1/2" length for robust structural fastening
• High-strength stainless-steel construction for superior durability
• Corrosion-resistant double-barrier coating—ideal for indoor or outdoor environments
• Patented CUT point design reduces driving torque and eliminates the need for pilot holes
• Hex head profile provides secure seating and efficient torque transfer
• Serrated threads for enhanced pull-out resistance
• Head stamped with brand and length for quick identification after installation

⚠️ WARNING: This product can expose you to Tetrabromobisphenol A known to the State of California to cause cancer and Epichlorohydrin known to cause birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.