0.220" x 3-1/2" Strong-Tie SDWS22312DBB-R50 Structural Screw T40 Star Double Barrier Black - Pkg 50

Built for exterior wood construction, the Simpson Strong-Tie Outdoor Accents® SDWS Structural Screw combines dependable holding power with a decorative black finish. At 0.220" x 3-1/2", this screw is engineered for structural wood connections while maintaining a clean, finished appearance. The 50-count package supports larger outdoor projects without constant reordering.

Note: Hex-head washers are sold separately for projects requiring a bolted-connection appearance.

Outdoor Accents Structural Screw with T40 Star Drive and Black Finish

Whether you're assembling a backyard pergola or framing an outdoor living space, this structural wood screw provides the strength needed for load-bearing wood connections. The Double Barrier coating helps protect against corrosion in exterior environments, including treated lumber applications.

Key Features

• Corrosion-Resistant Finish: Double Barrier Black coating designed for long-term outdoor durability.
• High-Torque T40 Drive: Star drive system improves control and reduces cam-out.
• Decorative Head Profile: Designed to coordinate with the Outdoor Accents hardware line.
• Fast Installation: Engineered tip penetrates wood efficiently, reducing the need for pre-drilling.

Common Applications

• Exterior Beam Connections: Fastens structural members in outdoor framing projects.
• Arbor and Trellis Builds: Provides both strength and visual consistency.
• Deck Framing Details: Suitable for exposed structural joints.
• Outdoor Kitchen Structures: Ideal for wood framing in backyard installations.
• Accent Wood Features: Complements decorative black brackets and hardware.

Installation Tips

• Select the Correct Bit: Use a T40 Star driver to maintain solid engagement.
• Apply Steady Pressure: Keep the screw aligned to prevent wobble during driving.
• Avoid Overdriving: Stop once the head is firmly seated for best appearance and holding power.