The self-drilling aspect of these screws implies that they come equipped with a sharp, drill-like tip that enables them to pierce through materials without the need for pre-drilling a pilot hole. This feature significantly speeds up the installation process and reduces the risk of damaging the material being used. Self-drilling screws are often made from durable materials, such as stainless steel or carbon steel, and are coated with various finishes to enhance corrosion resistance and longevity.

3. Tapered or Flat Underheads The design of the underhead can vary. A flat underhead ensures even pressure distribution, while a tapered design can help in locking the bolt in place, reducing the likelihood of loosening under dynamic loads.

4% self-drilling screws are specifically designed to drill through harder materials such as steel and concrete. These screws have a special drill bit on the tip that allows them to penetrate the surface easily without the need for a separate drilling process. This feature is especially useful in applications where time is of the essence, as it speeds up the installation process significantly.

2. Strong Holding Power Tek screws are designed to provide excellent shear strength and pull-out resistance. This makes them ideal for heavy-duty applications, including steel framing, roofing, and metal siding.