Refers to self-tapping screws that do not require the use of a nut. The thread is self-tapping and has a pointed tip. Triangular teeth self-extruding screws, when being screwed into the holes in the plastic metal material, are pressed into the holes to form internal threads and form a reliable locking thread connection;
Cross recessed panhead self-tapping screws are used for non-metal or soft metal, do not use low holes and tapping; self-tapping screws are pointed so that they can be self-tapping; ordinary screws are flat and uniform in thickness and self-tapping. The screw is said to be: The drilled hole is a hole that does not require tapping. The screw used is different from the general one. The head is pointed and the pitch is relatively large. It is similar to the tapping without tapping. It can be directly screwed in without tapping. This method is usually used with plastic.
It can be on the material being consolidated, by its own thread, will be "attack - drill, squeeze, press" the corresponding body of the corresponding thread, so that they closely cooperate with each other.
The cross recessed pan head is also called a cross tapping screw. The name is not the same, but the meaning is the same. It is all self-tapping. The main function of self-tapping screws is that they do not need to be used with nuts. In terms of cost, a large number of them are saved. There is no need for a nut cost.
There are many commonly used self-tapping screws, such as cross recessed pan head self tapping screws, countersunk head self tapping screws, tapped self tapping screws, umbrella head self tapping screws, tail tapping screws, and last time to create a solid screw A triangle tooth self-locking screw that the manager wrote. Triangular teeth self-locking screws are widely used in the market. Customers are also very much used. Friends who are interested can look at the definition of self-locking screws, the definition and basic knowledge of triangular teeth self-locking screws. It is convenient for everyone to understand and learn.