Simpson Strong-Tie #12 x 2-1/2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 100 MST/HST Strap Ties Avoid underdriving and overdriving to

Avoid underdriving and overdriving to maintain the integrity of the seal

HU/HUC—Can be installed filling round holes only

mushroom head anchors for applications under static loads

these heavy-duty screws provide consistent performance in structural

Strong-Drive WSNTL Subfloor Screw

Simpson Strong-Tie #12 x 2-1/2" Self-Drilling Screw with Wings, Flat Head - 410 Stainless Steel, Qty. 100 MST/HST Strap Ties Avoid underdriving and overdriving toWhen 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