Why Safety Pins Have That Small Hole — The Secret Explained

In survival or outdoor situations, the hole can even be used to attach the pin to a keychain, lanyard, or piece of equipment, keeping it handy for quick repairs, fastening clothes, or temporary fixes. The design reflects the brilliance of simple engineering: a small, unassuming feature that enhances usability without adding cost or complexity.

For decades, safety pins have been a staple in households, sewing kits, and emergency repair kits, and the tiny hole is a testament to thoughtful design. Next time you pick up a safety pin, take a closer look at that small perforation — it’s a tiny detail with surprisingly big benefits.