Question

How can you tell if a screw is self tapping?

Answer 1

As the name suggests, self-tapping screws are screws that have the ability to tap threads into the material. Self-tapping screws are used for all sorts of material including wood, metal, and brick. These screws cannot drill through metal and require a pilot hole to be pre-drilled before installation.Jul 9, 2019

What's the Difference Between Self-Drilling and Self-Tapping?

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For harder surfaces, self tapping screws might have little notches on the thread to help cut the thread, just like a tap. Not all tapping screws have a pointy tip, some will be blunt or flat.