Teks 8 x 1 in. Fine Zinc-Plated Steel Truss-Head Phillips Drill-Point Lath Screws (170-Pack) provide secure 20-Gauge to 12-Gauge metal-to-metal fastening in stucco/plaster with strong holding power without the need to pre-drill. The engineered drill point and flute remove material and properly size the hole for threads. Install with a standard screw gun and a 2-Phillips-drive bit (screw gun and bit not included). No pre-drilling necessary.