Attach wood siding, wood panels and metal trim to steel studs. #1 square drive trim head, .230" head diameter, #3 drill point. Threaded 2/3; of overall length. Drilling thickness capacity: up to 0.125" (111 mils or 11 ga.).

Fasten fiber cement through furring strips to steel studs. #2 square drive wafer head, #3 drill point. Self-countersinking nibs under head insure seating of screw head flush with work surface. Threaded to within 5/16 " of top of head. Drilling thickness capacity: up to 0.142" (118 mils or 10 ga .).

#3 drill point for quick penetration of metal up to 0.142" or 10 ga. material thickness. 10 x 1 screw with a #2 square drive. Low profile head. Ideal for securing clips used in standing seam roofing.

Fasten wood, plywood and fiber cement to heavier steel – up to .209" thick. #3 square drive. Machine screw thread, threaded full length. 2 1/2 " length for 2 x 4 wood header; 2" length for 1" and 3/4 " boards. Flat countersunk head with self-countersinking nibs. Shank slot enhances thread formation in steel and removes exhaust. Wings above drill point provide clearance hole in work piece so it won’t climb up the shank, then break off as point engages the steel substrate. Drilling thickness capacities: up to .209" (171 mils, 7 ga) for #12, up to .250" (229 mils, 3 ga) for #14.

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.