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What is the difference between drywall screws and self-tapping screws

What is the difference between drywall screws and self-tapping screws

The appearance of drywall screws and self-tapping screws is similar, and many friends do not know the difference. So what is the difference between drywall screws and self-tapping screws?

What is the difference between drywall screws and self-tapping screws?

  1. Purpose

The former is widely used in the installation and construction of ceilings, the installation and construction of lightweight partition walls, the installation and construction of gypsum boards, etc., while the latter is widely used in relatively soft metal materials or non-metallic materials, as long as they rely on their own Threads, you can create corresponding threads on the material, so that you and the material can fit together well.

  1. Features

The biggest special feature of the former is that the head is in the shape of a horn, while the main features of the latter are: higher locking performance, lower screwing torque, and much better performance than ordinary screws, and even sometimes can replace the machine. screws are used.

  1. Classification

The former is generally divided into two types, one is called single-line coarse thread drywall screw, and the other is called double-line fine thread drywall screw. The latter are generally classified according to the shape of the head, and can be divided into many types, such as: round self-tapping screws, hex head self-tapping screws and so on.

How to buy high-quality screws?

  1. Measure the outer diameter

Under normal circumstances, inferior screws will be thinner and shorter in size, and will be thinner than standard screws, which is very obvious.

  1. Look at the appearance

The surface of high-quality screws is generally treated with a special process, and the gloss will be higher, and the interface position will be smoother. The surface of inferior screws is generally rougher, and there will be burrs, and the threads will be shallower.