"Tony Hwang" wrote in message
news:r%0Aj.53140$w94.18459@pd7urf2no...
*alan* wrote:
Not technically a home repair topic, but:

Do the holes in the prongs of an electric plug serve any purpose? If so,
what is that purpose?
Thanks for any information.
--
alan
(just curious)
Hi,
When you plug it in it mates with dimpled tab to make secure contacts.
If in double break apart a receptacle(only couple dollars a piece) and see
for yourself.

Thanks Tony!