Simpson Strong-Tie #12 x 2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 100 Blue Concrete Screws The Simpson Strong-Tie Crimp Drive

The Simpson Strong-Tie Crimp Drive anchor is an easy-to-install expansion anchor for use in concrete and grout-filled block

and other sheathing products to steel up to 16 gauge

making them suitable for indoor and protected outdoor environments

Heavy-Duty Reinforcement: Designed to strengthen 90-degree wood connections in structural framing applications

Simpson Strong-Tie #12 x 2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 100 Blue Concrete Screws The Simpson Strong-Tie Crimp DriveWhen you need to fasten wood, plywood or fiber cement board directly to steel framing without pre drilling, this Simpson Strong Tie F12C200FDC Self Drilling Flat Head Screw With Wings delivers the performance you expect. Wings create a clearance hole in the top material so the shank will not ride up, then break off as the drill point engages steel. The flat countersunk head offers a clean, flush finish and the full length machine screw threads provide