Cotter Pins

A cotter pin, also known as a split pin or a cotter key, is a simple and widely used fastening device. It consists of a thin, metal pin with a looped or folded end, resembling the letter "R" or "U." Cotter pins are designed to secure various components together by passing through a hole in a shaft or bolt and then bending or spreading the ends to prevent the pin from slipping out. Here's how a cotter pin typically works: Insertion: The cotter pin is inserted through a hole in a shaft, bolt, or other fastener. The looped or folded end of the pin prevents it from sliding all the way through. Bending or Spreading: Once inserted, the extended ends of the cotter pin are bent or spread apart, locking the pin in place. This prevents the fastener from loosening or disengaging due to vibration, rotation, or other forces. Cotter pins are used in a wide range of applications, including automotive, machinery, construction, and more. They are commonly employed to secure clevis pins, castle nuts, and other fasteners where a temporary or semi-permanent connection is needed. Cotter pins are known for their simplicity, reliability, and ease of use, making them an essential component in many industries and DIY projects.
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