Based on uses and feature there are five types of screws.
How to use sheet metal self threading screws.
Self tapping screws drill their own little tunnels by cutting precise threads when they are screwed into wood plastic or metal.
Whichever name is used these names are for screws that form mating threads tapping the threads in a pre drilled hole in the substrate into which they are driven.
Let it turn until it goes all the way through as the threads and the sharp point make their own hole.
This allows you to skip pre drilling a hole into thinner gauges of sheet metal.
A self tapping screw can be referred to as simply a tapping screw.
You need to use screw in any project.
Each one has its own uses and features.
To use self tapping screws place the screw directly on the aluminum sheet.
They are self tapping screws self drilling screw sheet metal screws tek screws sds screws and grabber screws.
Either it is on metal or wood.
When using self tapping screws on aluminium choose a self tapping screw with a drill like point and sharp cutting blade threads that go down the whole length of the screw.
However it is also often called a sheet metal screw because they are primarily used in sheet metal.
To use self tapping screws place the screw directly on the aluminium sheet.
It s helpful to use self tapping screws for products that you need to maintain regularly such as air conditioning units or canopies where you need to dissemble and reassemble the item along the same threads.
A self drilling screw has a chisel tip similar to a drill bit.