Fasten wood, plywood and OSB panels to steel studs. #2 square-drive bugle heads drive flush with work surface. Tapping screw threads, #3 drill points. Drilling thickness capacities: up to .083" (68 mils, 14 ga.) for #6, up to .142" (118 mils, 10 ga) for #8 and up to .177" for #10.Simpson Strong Tie Co., Inc.