What is a self-tapping screw?

A self-tapping screw is a type of fastener consisting of a metal screw stud with threads along its entire length or part of it. The main feature of a self-tapping screw is its ability to firmly anchor itself in a material without the use of additional elements such as nuts or washers.

Main characteristics of self-tapping screws:

The thread is full or partial, often with a sharp end for easy drilling.
The head can have different shapes: hexagonal, cross (PH or PZ), socket, etc., which ensures ease of tightening.
A notch or sharp end helps screw the screw into the material easily; no pre-drilling is required (although there are screws with a drilling point for difficult materials).
The material of manufacture is most often steel, stainless steel, brass or aluminum, depending on the purpose.

Types of self-tapping screws :

By purpose: For wooden surfaces, Metal, For plastic, Combined (for plasterboard, concrete, etc.).
By thread type: Full thread and Partial thread.
By head shape: Hexagonal, Phillips (PH, PZ), Socket.

Where are self-tapping screws used?

In construction and repair (for example, fastening plasterboard, panels, wooden structures)
In mechanical engineering and manufacturing
In the household for installation of various elements
In electronics for fastening components (small screws)