Nuts are nuts, which are screwed together with bolts or screws to play a fastening role. One element that must be used in all production and manufacturing machinery is divided into carbon steel, stainless steel, non-ferrous metals (such as copper) and other types according to different materials.

The external knurling of embedded copper nuts can be formed in two ways. One is to use copper raw materials to stretch the knurling and then produce it on the equipment. Generally, the stretch pattern of this way is straight, and the other is to use smooth round copper materials to directly tap the teeth while embossing in the production process. This processing method can produce some non-standard knurled copper nuts. The embossing shape of embedded copper nuts can be selected by users, such as reticulate Various knurling patterns such as splayed embossing and herringbone embossing.