A product description for a screw, and it's actually being read?! First off, we're excited you care as much about fasteners as we do and we're glad you're considering a Makers Bolt fastener for your project. This self drilling screw may just be that perfect fastener you've been looking for! It's not just a regular hex head self drilling screw, it's 410 Stainless Steel, meaning it's been hardened so you can use that impact drill to go right through that sheet metal like butter, without needing to pre-drill. Over the coarse of the whole project, you'll have saved enough time to drink two more bevies and satisfy your OCD by getting that door just slightly more plumb. It's good enough, seriously. But since you care about the details, let us tell you about the finish on these TEK screws. They have been black coated to create a beautiful black finish on stainless steel that won't chip, flake, or peel off. We found it challenging to find a consistent black finish on fasteners that will still look good after installation. The finish on these fasteners is a result of the search for a solution to that problem. You won't find many stainless steel fasteners offered in a black oxide finish because the process is very challenging to produce a black even coating, but you're in good hands. We've got you covered when you need a black stainless steel screw. Get yourself a drill, a pack of these self drilling screws, and drill on. You won't be disappointed. Thanks for reading this all the way to the end. You're officially as stoked about fasteners as the Makers Bolt family.