Hairpin Cotter Pins

A hairpin cotter pin, also known as a hairpin cotter key or simply a hairpin pin, is a type of fastener used to secure components in a way that allows for quick and easy assembly and disassembly. It is named "hairpin" due to its resemblance to a hairpin or bobby pin. Here are the key characteristics and uses of a hairpin cotter pin: Design: A hairpin cotter pin consists of a bent wire or metal rod with a loop at one end and two straight legs extending from the loop. The looped end is inserted through a hole or slot in a shaft, bolt, or other fastener. Securing Components: Hairpin cotter pins are commonly used to secure various components, such as wheels, gears, or hitch pins, to shafts or axles. They prevent these components from slipping off or becoming disengaged during operation. Quick Assembly and Disassembly: One of the main advantages of hairpin cotter pins is their ease of use. They can be inserted and removed quickly without the need for tools, making them ideal for applications where frequent assembly and disassembly are necessary. Reusability: Hairpin cotter pins are typically reusable and can be installed and removed multiple times. Hairpin cotter pins are widely used in automotive, agricultural, and industrial applications where secure yet easily adjustable connections are required. They provide a convenient and reliable solution for maintaining the integrity of mechanical systems.