Teks #10 x 3/4 in. Zinc-Plated Steel Hex-Head Self-Tapping Drill-Point Screws (150-Pack) are ideal for attaching HVAC, electrical, metal framing, and general metal-to-metal applications for secure fastening and strong holding power. Teks screws provide secure metal-to-metal fastening and strong holding power without the need to pre-drill. Screws tap their own threads. Engineered drill point and flute allow for efficient material removal