Simpson SWD18212DBB-R50 0.180″ X 2-1/2″ SWD Double-Threaded Wood Screw – Black, Pkg 50

The Strong-Drive SWD Double-Threaded Screw is a high-performance structural fastener engineered for exterior wood-to-wood applications, including deck ledgers and general framing. Double thread design and unthreaded mid-shank, this screw delivers consistent clamping force while minimizing wood splitting and over-driving.

Crafted for demanding environments, it features a corrosion-resistant double-barrier coating, ensuring long-term durability even in outdoor exposure. The low-profile head provides a clean, flush finish.

Key Features:

• Double-Threaded: Grips both members of the wood connection for superior withdrawal resistance.
• Unthreaded Mid-Shank: Allows wood members to draw tightly together, creating a stronger joint and reducing friction during driving.
• Black Double-Barrier Coating: Built to withstand harsh outdoor environments.
• Flush Head De