Why Padlocks Have a Tiny Hole at the Bottom (And Why It Matters)
At first glance, it looks like a flaw. A tiny, almost imperceptible hole sits beneath the solid metal body of your padlock, easy to overlook unless you’re actively searching for imperfections. Some assume it’s decorative. Others chalk it up to a manufacturing error. But engineers rarely leave holes in metal without purpose—and this one, though …
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