It’s an item we all have at home. In a sewing kit, at the bottom of a drawer, or tucked into a bag, just “in case.” The safety pin, this small accessory as simple as it is useful, is one of the discreet heroes of everyday life. But have you ever noticed that tiny hole near its spring? No? No wonder, it easily goes unnoticed.
And yet… this barely visible detail hides a surprisingly well-thought-out manufacturing secret . Ready to lift the veil on this little hole that changes everything?
A detail that we don’t notice… but which makes all the difference
Imagine: you close a safety pin – click! That just-right tension, that reassuring little “snap”… This ease of use is due to a tiny design element: the famous little hole near the spring .
Located right next to the spiral mechanism, it appears purely decorative. But in reality, it plays a key role in the assembly and performance of the hairpin . It is neither a defect nor an aesthetic addition, but a discreet engineering trick that ensures its proper functioning.
