Teks #12 x 1-1/2 in. External Hex Flange Hex-Head Self-Drilling Screws (80-Pack)

Teks self-tapping screws provide secure metal-to-metal fastening with strong holding power without the need to pre-drill. Engineered drill-point and flute remove material efficiently and properly size the hole for threads. Ideal for fastening thicker gauge (20-Gauge to 12-Gauge) metal to metal in applications such as heating, ventilation and air conditioning (attaching duct work to steel framing), electrical (attaching accessories to steel framing) and overhead steel doors, hinges and latches. Installs with a standard screw gun and a 5/16 in. hex drive bit.|Provides secure metal to metal fastening without the need to pre-drill and reduces cam-outs for high performance drive surfaces and recess|Precise point designed to drill, tap and fasten all in 1 motion|High performance drive surfaces reduce cam-outs to penetrate surface the first time for easy installation|Zinc plated finish protects the job's appearance|No tool slippage even with older sockets and worn bits|No pre-drilling is necessary|Highly versatile|Common project applications: roofing, HVAC, steel stud framing, gutters and register vents