Nuts are fasteners with internal threads and used in conjunction with bolts, and mechanical parts that have internal threads and used in conjunction with screws to transmit motion or power.

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A nut is a nut, a part that is screwed together with a bolt or screw for fastening. It is an original part that all production machinery must use. There are many kinds of nuts. Our common ones are national standard, British standard, American standard, and Japanese standard. Standard nuts. Nuts are divided into carbon steel, high-strength, stainless steel, plastic steel and other major types according to different materials. According to the product attributes, the standard numbers corresponding to different countries are divided into ordinary, non-standard, (old) national standard, new national standard, and American system. , British system, German standard. The size is different, and the thread is divided into different specifications. Generally, the national standard and the German standard are represented by M (for example, M8, M16), and the American system and the British system are represented by fractions or # for specifications (such as 8#, 10#, 1/4, 3 /8) Fasteners. Nuts are parts that tightly connect mechanical equipment. They can be connected together only through inner threads, nuts and screws of the same specification. For example, M4-0.7 nuts can only be matched with M4-0.7 screws ( In the nut, M4 means that the inner diameter of the nut is about 4mm, and 0.7 means that the distance between the two threads is 0.7mm); the same is true for American products, for example, a 1/4-20 nut can only be used with a 1/4-20 screw Matching (1/4 means that the inner diameter of the nut is about 0.25 inches, 20 means that there are 20 teeth in each inch)