SDS( Self Drilling Screw)
When you’re drilling into harder material such as sheet metal you need to drill a pilot hole in advance. For thicker metal, it may require more than one screw to drill through the surface. To save time and labor, you can use self-drilling self-tapping screws to drill into metal.
Brand : PATTA
Available Sizes: 3/4’ , 1’ , 11/2’, 2’