Self-tapping screws, have the capacity to tap threads into a variety of materials. Self-tapping screws can be utilized with brick, metal, wood, and other materials. Because these screws can't drill through metal, a pilot hole must be made before installation.
USG Screws Self Tapping, constructed of light gauge steel, are needle point fasteners for single-layer and multi-layer drywall planking, insulation, and accessory mountings on drywall steel structures. They are 4.2 mm thick with a zinc coating of 180-270 g/m2.
Using self-tapping screws has two main advantages. The first is that by doing away with the requirement for a tap, they save time and money. The second is that the threading they produce as a result is significantly more accurate and produces a tighter, stronger bond.