Why Your Electrical Plug Has Two Tiny Holes—and the Smart Reasons Behind Them

An Extra Layer of Safety for Children

The holes also help the prongs sit deeper and more securely inside the outlet. For families with little ones, this small detail can make a meaningful difference. A deeply seated plug is harder for a child to wiggle loose or tamper with, reducing the chance of accidental contact with live metal parts.

While childproof covers and outlet guards remain important, this subtle design feature supports overall household safety.

Useful During Manufacturing and Packaging

You may have noticed that some new electronics come with a plastic tie, tag, or security loop attached through those holes. Manufacturers often rely on them for:

  • tamper-evident seals
  • product tags
  • packaging ties that keep cords neatly wrapped

By using what’s already built into the plug, companies avoid extra materials, cut down on waste, and keep packaging simpler and more efficient.

A Small Detail With Big Purpose

Those tiny holes may look insignificant, but they’re a quiet example of thoughtful engineering—something we often overlook in everyday items. They help keep plugs secure, support safer homes, and streamline manufacturing from the factory floor to your kitchen counter.

The next time you plug in a lamp or charge your phone, take a moment to appreciate how even the smallest details can make a meaningful difference.

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