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Narrow standard parts

Narrow standard parts

Narrow standard parts are standardized fasteners, which are actually a kind of connecting parts (connectors), but because of a wide variety of applications, they are only used in actual use, or even referred to as standard parts for short. It usually includes the following 12 types of parts: 1. Bolt: A type of fastener composed of two parts: head and screw (cylinder with external thread). It needs to be matched with nut to fasten and connect two parts with through holes. This type of connection is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. 2. Stud: no head, only a type of fastener with external threads at both ends. When connecting, one end of it must be screwed into a part with an internal thread hole, and the other end must pass through a part with a through hole, and then screw on a nut, even if the two parts are fastened and connected into a whole. This type of connection is called a stud connection and is also a detachable connection. It is mainly used for occasions where one of the connected parts has a large thickness, requires a compact structure, or is not suitable for bolt connection due to frequent disassembly.

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Introduction of standard parts

Introduction of standard parts

Is a clear standard of mechanical parts (parts) and components, (the use of standards mainly China National Standard (GB), the American Society of Mechanical Engineers standard (ANSI /ASME), other Japan (JIS), Germany (DIN) and other standards are also widely used in the world. Mechanical parts and components with a high degree of standardization and strong industry versatility are also called universal parts. Generalized standard parts include fasteners, links, transmission parts, seals, hydraulic components, pneumatic components, bearings, springs, etc., all of which have corresponding national standards and have strong cross-industry versatility.

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