self drilling bolts for steel

A wafer head screw, as the name suggests, has a flat, thin, and circular head, resembling a wafer. The head is usually larger than the screw's body, providing a broad bearing surface that distributes the load evenly and reduces the chances of damage to the material being fastened. The self-tapping attribute refers to the screw's ability to cut its way through the material it is inserted into, forming threads as it goes, hence the term self-tapping.

...

One of the key advantages of using 3/4 x 6 concrete anchor bolts is their versatility and reliability in various construction projects. Whether you are building a new structure, retrofitting an existing building, or installing machinery and equipment, these anchor bolts offer a robust fastening solution that ensures the stability and integrity of your project. Their high load-bearing capacity and resistance to corrosion make them a popular choice among construction professionals for securing critical components in concrete structures
3
3 4 x 6 concrete anchor bolts.

...