In most cases, the self-drilling screws are used in light gauge application but its point can drill through and fasten up 1/2 inch of steel which means self-drilling screws go through steel.
Self-drilling screws also tap threads to a certain extent during installation.

Co-Founder Cord To Cordless
Adan grew up in farmland and learned many things at an earlier age and works in more than 6+ places with different works to gain experience in multiple fields. Currently doing shop projects.
Adan loves to share experiences to build more creativity in your mind.