What are the common fasteners?

Fastener is a kind of mechanical parts. Its function is to fix other mechanical parts so that they can be tightly combined to prevent loosening, swinging and other undesirable situations. The importance of fasteners lies in their firmness, reliability, and ease of installation. They are widely used in machinery, automobiles, electrical equipment, aerospace, and chemical industries. Common fasteners include bolts, nuts, screws, expansion bolts, pins, snap rings, spring washers, etc. Bolt A bolt is a fastener, generally composed of a screw and a nut. They can hold more than two objects together and are suitable where high torque and repeatable disassembly are required. There are many types of bolts, including standard screw bolts, high-strength bolts, torque control bolts, etc. Nut The nut is an accessory part of the bolt, and it is also a fastener, which is often used to tighten the bolt and the connection. According to different use occasions, there are many types of nuts, such as standard nuts, high-strength nuts, low-expansion nuts, hexagonal nuts, etc. screw A screw is a short threaded rod that is usually used to fasten panels or joints. Maijin's screws are divided into two types: self-tapping screws and machine screws, among which self-tapping screws are suitable for direct drilling and fixing on plates, and are widely used in construction, machinery and other industries. Expansion bolt Expansion bolts are also called expansion plug bolts, which are generally suitable for fixing foundations such as concrete and rock, and can also be used for the installation of accessories. Expansion Shenhua is composed of anchor plugs and bolts, and uses the principle of anchorage expansion to fix steel bars, plates and other objects. Pin A pin is a part, generally suitable for connecting and fixing two mechanical components. According to the shape, there are cylindrical pins, drum pins, wedge pins, elastic hanging pins and so on. Circlips Circlips are a kind of mechanical parts, which are divided into two types: round springs and leaf springs. They are often used in axial fixing, sliding support, shock absorption and vibration isolation, etc. According to different shapes, it can be divided into type spring, coil spring, torsion spring and so on. spring washerSpring washer, also called spring clip, is a part formed by a spring, which is usually used to generate elastic displacement for connecting parts to prevent unstable factors such as looseness and gaps. There are many types of spring washers, among which spring washers, washers, and convex washers are more commonly used. Looking at the above seven types of fasteners, they have their own characteristics and complement each other to form common and basic fastening components in mechanical design. No matter in any industry field, fasteners are indispensable and important elements. Their performance not only determines the overall quality of machinery, but also directly affects the safety and stability of machinery. Therefore, for mechanical design workers, choosing suitable fasteners, rational use, installation and maintenance are the primary responsibilities and tasks to achieve high-quality mechanical design and production.