The hole in a safety pin, located at the coil end, serves several important purposes related to the pin’s function and manufacturing:
- It is a crucial part of the spring mechanism of the safety pin. The hole acts as the anchor or starting point where the wire is fastened during manufacturing, allowing the metal wire to be twisted into a tight coil that provides the necessary tension for the pin to snap shut securely and stay closed
- This tension created by the coil and maintained through the hole keeps the pin flexible and ensures it reliably jumps back into place each time it is opened and closed, preventing it from accidentally popping open and causing injury
- During production, the hole serves as a guiding pinhole to keep the wire steady and allow precise, consistent shaping of the coil, which is essential for the pin’s spring action and durability
- Although not originally intended for other uses, the hole can also be used creatively, such as threading a ribbon or wire through it to attach the safety pin to other objects or for more precise placement in sewing and embroidery
In summary, the hole in the safety pin is a small but essential feature that supports the pin’s spring mechanism, maintains tension, aids manufacturing precision, and can provide additional utility in crafting or fastening applications
