hex flange head self drilling screw

The design of an M8 wedge anchor is simple yet effective. It consists of a threaded rod with a nut and washer, accompanied by a wedge-shaped expansion sleeve. When installed, the anchor is drilled into a pre-drilled hole in the concrete, and then the bolt is inserted and tightened. As the bolt is tightened, it pulls the wedge-shaped sleeve against the sides of the hole, creating friction and causing the sleeve to expand. This expansion locks the anchor securely in place, providing a strong hold that can withstand significant loads.

...

The rise of self-drilling screws has also spurred innovation in the construction and engineering industry, leading to the development of new building techniques and designs. With the ability to quickly and securely fasten materials, builders and engineers are empowered to explore more ambitious projects and push the boundaries of traditional construction methods. This has led to the creation of more resilient and sustainable structures that can withstand the test of time.

...