Simpson Strong-Tie #12 x 2-1/2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 1,800 LSTHD/STHD Strap-Tie Holdowns Engtineered with specially designed threads

Engtineered with specially designed threads

These strips are compatible with most 16 gauge straight finish nailers

The Simpson Strong-Tie CBSDQ214S Collated CBSDQ Sheathing-to-CFS Screws are engineered for high-volume sheathing installations into cold-formed steel (CFS)

while coarse threads on the shank pull deck boards tightly to framing for lasting hold

Simpson Strong-Tie #12 x 2-1/2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 1,800 LSTHD/STHD Strap-Tie Holdowns Engtineered with specially designed threadsWhen you need to fasten wood, plywood or fiber cement board directly to steel framing without pre drilling, this Simpson Strong Tie F12C250FDB 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