If you want to know the difference between anti-loosening screws and self-tapping screws, you must first understand the concepts of the two. That is to say, it is necessary to first figure out what is an anti-loosening screw, what is a self-tapping screw, and what are their effects? Knowing these two points, the difference between the two will naturally appear.

First understand what is a locking screw: The locking screw was created in the United States as early as Kneading produces a strong reaction force and friction, and then prevents the screw from retreating to achieve the effect of preventing loosening. Another anti-loosening screw is the dispensing screw, which is pre-coated with anti-loosening screw glue, anti-loosening screw, and anti-loosening glue. It is a high viscosity, non-toxic, touch deformation, water-based pre-coated thread sealant. Suitable for automatic gluing. After drying, this product becomes a resilient, strong adhesion, non-curing sealant that can be used to seal tapered or straight threads.

What is a self-tapping screw? Self-tapping screws generally refer to pointed, coarse teeth, and hard wood screws, and are also used for aluminum alloys and plastics. A special type of self-tapping screw used for threading metal holes is called a tap. Self-tapping screws are used for non-metal or softer metals, and there is no need to drill low holes and taps; self-tapping screws Self-tapping screws are pointed, so that the ability to "self-tapping"; general screws are flat head, the same thickness .Self-tapping screw means: the drilled hole is a hole that does not require tapping. The screw used is different from the general one. The head is sharp and the tooth spacing is relatively large. Screw in, metal and plastic generally use this method. It can "tap-drill, squeeze, press" the corresponding thread on the consolidated material by its own thread to make it fit closely with each other. Self-tapping screws are mostly used for the connection between thin metal plates (steel plates, saw plates, etc.). When connecting, first make a threaded bottom hole for the connected piece, and then screw the self-tapping screw into the threaded bottom hole of the connected piece. Since the thread surface of the self-tapping screw has high hardness (≥HRC45), the inner thread can be tapped in the threaded bottom hole of the connected piece, and then the connection is formed.

Self-tapping screws can also become anti-loosening screws, just apply anti-fall, anti-loosening glue, etc. Therefore, self-tapping screws are also called self-tapping screws that can prevent loosening.