Simpson Strong-Tie #12 x 2-1/2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 100 MST/HST Strap Ties this collated screw enhances productivity

this collated screw enhances productivity while maintaining code-compliant strength and fastening precision

clears excess material

Self-Tapping Thread Design: Cuts into concrete cleanly—no expansion or secondary setting required

HU/HUC—Can be installed filling round holes only

Simpson Strong-Tie #12 x 2-1/2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 100 MST/HST Strap Ties this collated screw enhances productivityWhen you need to fasten wood, plywood or fiber cement board directly to steel framing without pre drilling, this Simpson Strong Tie F12C250FDC 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