You need to use screw in any project.
How to use sheet metal self threading screws.
Based on uses and feature there are five types of screws.
Each one has its own uses and features.
Stabilize the screw so it doesn t tilt as it goes in and twist the screw into the metal.
However it is also often called a sheet metal screw because they are primarily used in sheet metal.
Self drilling or self tapping metal screws increase productivity by reducing the number of steps required to screw together pieces of metal.
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.
These self tapping screws are designed to keep thin metal from denting.
Self tapping screws drill their own little tunnels by cutting precise threads when they are screwed into wood plastic or metal.
To use self tapping screws place the screw directly on the aluminium sheet.
Let it turn until it goes all the way through as the threads and the sharp point make their own hole.
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.
This allows you to skip pre drilling a hole into thinner gauges of sheet metal.
To use self tapping screws place the screw directly on the aluminum sheet.
A self drilling screw has a chisel tip similar to a drill bit.
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.