That small hole at the end of the safety pin’s coil isn’t there by chance. Its main function is to maintain the spring tension , distributing the force as the pin opens and closes. Thanks to this design, the metal doesn’t warp, and the safety pin can be used hundreds of times without losing its shape or closing strength.
Additionally, the hole acts as an anchor point , preventing the needle from coming loose from its base and ensuring the pin stays closed even if it’s subjected to pressure or movement. In other words, that little detail is what makes the safety pin truly secure .
Helpful tips for making the most of safety pins
- Always have several sizes on hand: small ones are ideal for underwear or fine sewing, while large ones are good for blankets, backpacks, or thick clothing.
- Clean them occasionally: they can rust with use. Wipe them with a cloth soaked in vinegar and dry them well to prolong their lifespan.
- Keep them closed: avoid punctures and protect the tip from losing its sharpness.
- Use them as a tool: you can untangle chains, open stuck zippers, or improvise a pendant or brooch.