A fastener nut, also commonly known as a nut, is a connector used in conjunction with a bolt or screw to securely connect two or more parts. The following is a detailed analysis of fastener nuts: 1. Basic concept and use Basic concept: Fastener nut, that is, nut, is a fastener with internal thread, usually matched with the external thread of the bolt or screw to achieve the function of connection and fastening. Usage: Nuts in machinery, electronics, construction and other fields have a wide range of applications. It is mainly used to connect and fix parts, adjust and position parts, transmit force and movement, and form a sealing structure to prevent leakage. 2. Types and characteristics Hex nuts: One of the most common types of nuts, with a hexagonal top for easy tightening and removal with a wrench or screwdriver. This kind of nut is widely used in mechanical equipment, construction engineering and other fields, because of its simple structure and strong bearing capacity. Square nuts: The top is square or rectangular, suitable for use when large operating space is required or when a wrench is not available. For example, in some narrow gaps or corners, square nuts can be more convenient for tightening operation. Round head nut: the top is round, beautiful appearance, suitable for some occasions with high appearance requirements. In addition, the round head nut also has a certain anti-loosening performance, which can reduce the screw loosening caused by vibration or impact to a certain extent. Locking nut: with a special locking mechanism, can prevent screws from loosening to a certain extent. This type of nut is often used where high reliability connections are required, such as in critical parts of mechanical equipment. 3, selection and installation Selection: When selecting nuts, you need to consider the material, size, thread type and whether special locking functions are required. Ensure that the selected nut matches the material and size of the piece to be connected to meet the connection requirements. Installation: When installing the nuts, ensure that they fit well with the threads of the bolt or screw and tighten them with the appropriate tools. At the same time, attention should also be paid to the tightening torque of the nut to avoid too tight or too loose resulting in damage or loosening of the connector. During the installation process, the contact surface of the connector should also be kept smooth and clean to improve the stability and reliability of the connection.
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