Open mouth pin is a type of pin, described as follows:
Basic definition
Open mouth pin is a mechanical component, commonly known as spring pin or safety pin, belonging to a type of metal hardware. It is usually made of high-quality steel or other elastic rigid materials, with one or more openings and elasticity.
main features
1. Shape and structure: Open mouth pins are usually cylindrical with openings at one or both ends. This design allows the split pin to be inserted into the hole and partially folded to both sides to secure or connect two or more components.
2. Elasticity and toughness: Open mouth pins have good elasticity and toughness, and each foot can withstand repeated bending without breaking or cracking in the bent part. This enables the split pin to provide reliable holding force when fixing and connecting components, while also facilitating disassembly and reconnection.
Action and use
1. Fixed function: The main function of a split pin is to fix and connect two or more components, preventing them from moving or loosening relative to each other. For example, in bolted connections, split pins are often used to insert into the bolt tail hole and nut groove, preventing the nut from loosening by breaking open the tail.
2. Wide application: Due to its unique shape and performance characteristics, open-end pins are widely used in various fields such as machinery, automobiles, aviation, ships, furniture, electronic devices, etc. In various mechanical connections, split pins play an important role in fixing, connecting, and preventing loosening.
Specifications and standards
1. Nominal specifications: The nominal specification range for open-end sales is usually 0.6~20mm, and specific specifications can be selected according to actual needs.
2. Standard specifications: The production and use of open-end sales require compliance with certain standard specifications, such as the Chinese national standard GB/T 91-2000. These standards provide detailed regulations on the basic dimensions, technical requirements, and acceptance inspection of open-end pins.
Installation and Precautions
1. Installation method: When installing the split pin, ensure that the nominal specifications of the split pin match the diameter of the pin hole, and avoid using wire or other materials to replace the split pin. When inserting the split pin, it should be gently inserted with hands or pliers to avoid using tools such as hammers to strike and damage the split pin or deform the pin hole. When breaking open the opening pin, a screwdriver or other tool should be used, and the opening angle is generally 60 °. If it collides with the workpiece, the opening pin can be rolled up appropriately.
2. Precautions: When using a split pin, attention should be paid to checking its surface for burrs, cracks, rust, and other phenomena to avoid using defective split pins. At the same time, it should be ensured that the installation position of the split pin is correct and firmly fixed to fully utilize its fixing and connecting function.
Overall, open-end pins are important mechanical components that play an irreplaceable role in mechanical connections. By understanding its characteristics, functions, specifications, and installation methods, it is possible to better select and use split pins to ensure the reliability and safety of mechanical connections.
Audited Supplier 
){kind=link}