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 while coarse threads on the

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

These strips are compatible with most 16 gauge straight finish nailers

Engtineered with specially designed threads

The Simpson Strong-Tie Heli-Ties are designed to anchor building facades to structural members such as concrete block

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 while coarse threads on theWhen 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