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There Are Two Round Holes on the Plug – And Their Magical Use Is Little Known! 🔌✨
Have you ever noticed the two small round holes near the tips of most standard electrical plugs? They’re easy to overlook and might seem like a random design feature—but believe it or not, those little holes serve a few very clever and important purposes.
In fact, once you find out what they’re for, you’ll never look at a power plug the same way again!
Let’s uncover the surprisingly smart function behind those tiny plug holes.
🔍 Where Are the Holes Located?
If you take a close look at a typical Type A or Type B plug (common in North America and several other countries), you’ll see two flat prongs. Near the tips of those prongs, there are usually two small circular holes—one on each.
They’re about 3–5 mm from the tip, and most people never think twice about them. But here’s what they actually do…
🛠️ 1. They Help the Plug Stay Secure in the Outlet
One of the main reasons for these holes is mechanical locking. Some electrical outlets or extension cords are designed with spring-loaded bumps or catches inside. These bumps snap into the holes in the prongs and help hold the plug more firmly in place.
✅ This keeps the plug from falling out too easily
✅ It ensures better contact between the plug and the power source
✅ It reduces the risk of loose connections, which can cause overheating or sparks
So next time your plug feels like it “clicks” into place, you know why!
🧰 2. They Aid in the Manufacturing Process
During production, the holes help manufacturers position and hold the prongs in place while the plug is being assembled or molded.
They serve as anchor points for the machines or molds
