2. Structural Flexibility
Much like how collagen keeps our joints from becoming “prehistoric” and brittle, the coil allows the metal to bend without snapping. It distributes the stress of the bend throughout the circular hole rather than focusing it on a single point, which prevents the metal from fatiguing over time.
3. The “Clever” Manufacturing Hack
During the manufacturing process, this hole serves a practical purpose. It allows machines to easily hook and move the pins along the assembly line, ensuring they are shaped with uniform precision.
Instructions: How to Use Safety Pins Like an Expert
By being observant of these tiny features, you can use safety pins in more clever ways than just fixing a hem:
- The Anti-Static Hack: Pin a safety pin to the inside seam of your clothes; the metal acts as a ground for static electricity.
- The “Lost String” Rescue: If you lose the drawstring in your hoodie, attach a safety pin to the end of the string. The pin acts as a solid “handle” that you can feel through the fabric to guide it back through the channel.
- The Zipper Lock: If you have a zipper that won’t stay up, slide a safety pin through the hole in the zipper tab and pin it to the fabric at the top for a clever, temporary fix.
