Hex self drilling screw is a type of fastener that combines drilling and fastening into a single operation. It eliminates the need for a pre-drilled hole and allows the screw to be drilled directly into the material being fastened.

Self-drilling screws are often used in construction, metalworking, and woodworking applications, where they can save time and effort by simplifying the fastening process.

A fastener self-drilling screw, also known as a self-tapping screw, is a type of self-drilling screw that has a sharp point and a specially designed thread that can cut into and tap a hole in the material being fastened. This allows the screw to create its own thread as it is driven into the material, creating a secure and tight fit.

Fastener self-drilling screws are commonly made of stainless steel, carbon steel, or other materials, and are available in a wide range of sizes and thread types to suit different applications. They can be used for fastening metal, wood, plastic, and other materials, and are often used in roofing, siding, and decking applications.