There are many kinds of nuts. Our common nuts are GB, Germany, Britain, America and Japan. Nuts can be divided into carbon steel, stainless steel and non-ferrous metals according to different materials.
The principle of lock nut widely used in life is that the lock nut has two parts, and each part has staggered cams. Because the inclination angle of the inner wedge design is greater than the nut angle of the bolt, this combination is tightly bitten into a whole. When vibration occurs, the convex parts of the lock nut move with each other, resulting in lifting tension, thus achieving a perfect lock nut effect.
Embedded nut
Copper nuts (usually lead brass, such as H59, 3604, 3602) made of various pressing wires. The embedded knurled copper nuts that we come into daily contact with are all processed by precision automatic lathe. The reference standard of embedded knurled copper nut comes from GB/T809.
There are two ways to form the external knurling of embedded copper nuts. One way is to draw flowers with copper raw materials and then make them on equipment. Generally, the lines drawn in this way are straight lines, and the other way is to use smooth copper material to directly tap teeth and emboss in the production process. This processing method can produce some knurled copper nuts with non-standard sizes, and the embossing shapes of embedded copper nuts can be selected by users, such as mesh, figure-eight embossing, herringbone embossing and so on.