Teks Screws, Self-drilling, Metal-to-Metal, 1 Inch Length – 140 screws

The product is highly durable The product is good to use Manufactured in China Provides secure metal-to-metal fastening with strong holding power without the need to pre-drill. The engineered drill-point and flute remove material efficiently and properly size the hole for threads. They are ideal for fastening thicker gauge (20 – 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. Install with a standard screw gun and a 1/4 in. hex drive bit.