What are the differences between anti-loosening screws and self-tapping screws?

What are the differences between anti-loosening screws and self-tapping screws? What the editor wants to tell you is that if you want to understand the differences between them, you must first understand their concepts. That is to say, we must first understand what anti-loosening screws are and what self-tapping screws are, and what their functions are? After understanding these two points, the differences between the two will naturally become apparent.

1. What is an anti-loosening screw?

Anti-loosening screws were first created in the United States. It is a special engineering plastic, mainly composed of nylon, which is sprayed onto the threaded teeth through thermal spraying technology. When the thread is tightened, the engineering plastic is kneaded, generating a strong counterforce and friction force, which in turn hinders the retraction of the screw, achieving an anti-loosening effect. Another type of anti-loosening screw is the dispensing screw, which consists of anti-loosening screw adhesive and anti-loosening screw pre-coated adhesive. Anti-loosening sealant is a high-viscosity, non-toxic, touch-deformable water-based pre-coated thread sealant, suitable for active gluing. After getting bored, this product turns into a highly elastic, adherent and non-curing sealant, which can be used for sealing conical or straight threads.

2. What is a self-tapping screw?

Self-tapping screws refer to those with holes that do not require tapping, and the screws used are different from ordinary screws. The head is pointed and the pitch between the teeth is relatively large. It's somewhat like a screw attack without chips and can be directly screwed in without tapping the teeth. This method is generally used for metals and plastics. In the consolidated data, it can make a tight fit by attacking, drilling and squeezing the corresponding threads of the consolidated body through its own threads. Self-tapping screws are mainly used for connecting thin metal plates (such as steel plates, sawn plates, etc.)." When connecting, first make a threaded bottom hole for the connecting piece, and then screw the self-tapping screw into the threaded bottom hole of the connecting piece. Due to the high appearance hardness of the thread of self-tapping screws (≥HRC45), the internal thread can be tapped into the threaded bottom hole of the connecting part and then form a connection.

Self-tapping screws can also be called anti-loosening screws. Just apply anti-drop and anti-loosening glue, etc. Therefore, self-tapping screws are also known as anti-loosening self-tapping screws.