Dottie TEKHT812 Zinc Plated Steel Hex Washer Head Self Drilling Screw #8 x 1/2 Inch

hi I'm Zack on this channel we bring you the best tools to get the job done as a professional tradesman today we're going to be talking about sheet metal screws the two main kinds are self tapping and self drilling and they both have two totally separate uses the self tapping has just a point on the end of it and is meant to tap its own threads into sheet metal where there's already a hole self drilling on the other hand can actually go through thicker metal because it drills its own hole on the way in and self tapping screws are often used and say appliances I find them a lot when I'm working on washers and dryers things of that nature where there is or rather there are two pieces of sheet metal that need to be joined together maybe the body and then there's your back panel and there'll be a big hole punched in the first panel and then a smaller hole punched in the second panel and thi