Simpson #12 x 1-1/4" XL LARGE-HEAD METAL Screw HT Heavy T Strap and bit longevity they need

and bit longevity they need when drilling anchor holes in concrete and brick or block

How do the wings on this screw work

Fastening aluminum panels

which is why Diablo rates these blades at up to 25x longer life

Simpson #12 x 1-1/4" XL LARGE-HEAD METAL Screw HT Heavy T Strap and bit longevity they needSimpson Strong Drive XL Large Head Metal Screw, #12 x 1 1 4" is a structural fastener engineered by Simpson Strong Tie for demanding metal to metal connections in cold formed steel framing and construction. Built with a hex washer head, a #5 drill point, and machine threads, this screw delivers the high shear resistance and uplift performance required in structural applications where reliable load transfer matters most. The Quik Guard coating provides