The nut is a fastener, generally used for disassembly occasions, its information is as follows
The function of the nut is to hold the bolt or screw together with the part. Due to the smooth surface of the nut, loosening caused by friction between threads can be reduced.
Nuts are usually made of metal materials, the most common are carbon steel, alloy steel, stainless steel, etc.
There are many ways to classify nuts, the most common is divided into hexagonal nuts, round nuts, square nuts, etc., according to the shape, it can be divided into ordinary nuts, high-strength nuts, locking nuts, etc.
The standardization of the nut is very important, the common standards are GB/T, ISO, DIN, etc., because the international standard labeling method is Mx.y, M indicates the nominal diameter, x indicates the line distance, y indicates the height.
Nuts are often used for fixing and connecting various equipment and structures in machinery, construction, electric power, chemical and other fields, and are widely used in industrial production and daily life.
In short, the nut, as a kind of fastener, is an indispensable part of the mechanical structure, and its material, classification, standardization and other aspects are of great significance.