Self-Drilling and Self-Tapping Sheet Metal Screws 101

Do you need some sheet metal screws? Have you done your homework?

If you're a contractor, you probably know all about how these different kinds of fasteners work. But if it's your first time buying these kinds of products, you need to know what makes self-drilling and self-tapping sheet metal screws different. We have both kinds, and each of them are best for different types of projects.

Don't wait until you get up on the roof to figure out the difference between self-drilling and self-tapping screws. You'll be calling yourself and everybody else every name in the book, and maybe teetering dangerously as you become increasingly apoplectic.

Let's just say a little research goes a long way.

Self-Tapping Screws

Self-tapping screws allow you to dig into wood or softer materials without pre-drilling holes with the drill. This saves a lot of time, but it doesn't help you to get through that tough initial exterior layer of sheet metal. So it would be best if you drilled holes in the sheet metal, but not the wood.

Self-Drilling Screws

The self-drilling screws, on the other hand, can go in through the sheet metal and the wood. Self-drilling screws are typically self-tapping screws, but self-tapping screws are not necessarily self-drilling screws. Get the picture?

It's not the screws that are complicated: it's the terminology. Basically, if you're going to do a quick and easy sheet metal project, you'll need self-drilling screws so that you can throw the sheet metal on top of the wood, hit that thing once, and be done.

Another super-important tip is to also get EPDM bonded sealing washers that will seal the screw head against the sheet metal, so that water and contaminants won't eat away your edges over time and start letting leaks develop.

If you spent significant time and money on a project, you want it to last for a while, so don't skimp on the washers. We have specialty EPDM bonded sealing washers available to make your project stand the test of time.

In addition, we have all kinds of other things, like electronic crimping connectors and more. Fasteners are our specialty. But we're not arrogant about it – we want to help you to optimize your supply chain, whether you're a mega company or somebody trying to make a small improvement at a home or business or investment property. We are a maker of fine fasteners- and a "Monster" in our industry. That's what we do.