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

The annular ring shank increases the withdrawal resistance to give the application a secure attachment

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

concealed appearance for connecting 6x10 beams to headers and ledgers

When the HGT-3 is used with a 2-ply girder or beam

Coarse Lower Threads – Strong pull-through that tightens boards to framing

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