Simpson #12 x 2-1/2" Self-Drilling Flat-Head Screw with Wing, 410 Stainless Steel PACK:1800 Pk this nail delivers reliable corrosion

this nail delivers reliable corrosion resistance in demanding environments while keeping hardware nearly invisible once countersunk below the work surface

which helps distribute load from the beam more effectively and maximizes connection support in structural post and beam assemblies

and harsh jobsite conditions

Single Phase operation

Simpson #12 x 2-1/2" Self-Drilling Flat-Head Screw with Wing, 410 Stainless Steel PACK:1800 Pk this nail delivers reliable corrosionSimpson #12 x 2 1 2" Self Drilling Flat Head Screw with Wing in 410 Stainless Steel is a precision engineered fastener from Simpson designed for attaching wood, plywood, and fiber cement to steel substrates up to 0. 209" thick. The winged drill point bores a clean clearance hole through the wood layer so the workpiece stays flush against the steel rather than riding up the shank then the wings snap off cleanly as the point contacts the steel, letting