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Why Do Electric Plugs Have Holes? Answered

Why do electric plugs have holes? You have seen them for years but what do they do? Stop believing the myths & learn what they do for yourself. After receiving multiple comments asking me to answer this question I hope you enjoy this video.
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  1. Silver Cymbal

    Silver Cymbal

    پیش 29 روز

    Thank you for watching please *LIKE & SUBSCRIBE* 👍 If you need more outlets with built in USB Ports: amzn.to/3oX0rdK shown in the video

    • Gary Grieve

      Gary Grieve

      پیش 15 روز

      @Richard Wolfe koi koi

    • Jessie


      پیش 20 روز

      Its there to have a Tighter fit in the plug... if it wasnt there it would just slide out with ease!!! Thats why the holes are there.. Sounds Dumb, punching a hole through it bends the metal so it locks in the plug.

    • L.Pasteur


      پیش 21 روز

      @Víðarr Kerr - From what I understood from the video, the holes themselves were a derivation of the small indentations from the original design by Hubbell. Other companies worked around Hubbell's design with the holes so they wouldn't have to pay Hubbell for his work. Both the small indents and the holes were there to secure the plug into the outlet so it wouldn't pull out easily. Modern day outlets, however, don't have any internal design that utilizes the holes in plugs to secure them in place. The holes are in fact obsolete or serve no purpose but we continue to use them because that's what people are conditioned to see. The prongs of plugs could be completely solid (no holes) and they would work just fine.

    • Víðarr Kerr

      Víðarr Kerr

      پیش 21 روز

      So, what were they for???????

    • Daniel


      پیش 22 روز

      You meant "indentation". There's no such thing as an "indention".

  2. joe woodchuck

    joe woodchuck

    پیش 2 ساعت

    So basically we still don't know. But I have a number plugs without them though. I like them better too.

  3. Nick Blackburn

    Nick Blackburn

    پیش 6 ساعت

    Nope, as we have proper three pin plugs with fuses built in and an earth to protect the user. US plus are so dangerous looking to me.

  4. Music2Die4


    پیش 11 ساعت

    I thought the holes may have been for permanently fixing the plug to an outlet, by using screws or bolts to hold it in place..........

  5. Perfo Rongo

    Perfo Rongo

    پیش 13 ساعت

    So they used to have a function but now they don't- so it's basically tradition at this point. Personally, I think it's a good thing that the holes are there. For one, it shaves off a little bit of material which could be recycled (everything has a plug, so that's a huge amount of metal on a national scale). And two, I think it's likely that the hole reduces friction when the plug is inserted.

  6. D W

    D W

    پیش روز

    Your 1967 Italian iron (1) doesn't have an Italian plug on it and (2) the "lip" on that plug suggests it's from a much later date. Now, do a video on why there's a lip on the electric plug.

  7. Not Funny News !

    Not Funny News !

    پیش روز

    Warning this video was nothing but a Plug""" But it did have one sexy Griddle"

  8. Kenny Bluet

    Kenny Bluet

    پیش روز

    Description says "Answer will shock you" .I think I see what they did there.

  9. josh ferguson

    josh ferguson

    پیش روز

    So his pull out game was weak then?

  10. Kevy Kev

    Kevy Kev

    پیش روز

    You’re a hole for not answering the question

  11. Josmar Hernández

    Josmar Hernández

    پیش روز

    Yo los e aprovechado para hacer extenciones provisionales con cable jaja conecto el cable directo a los hoyos cuando no tengo extensión

  12. Mike Chandler

    Mike Chandler

    پیش 3 روز

    Democrats have determined the holes are racist

  13. Prerit Kumar

    Prerit Kumar

    پیش 3 روز

    The holes are there so that videos like this can exist.

  14. Andy Garrison

    Andy Garrison

    پیش 3 روز

    i thought they were there to alow the tip to melt and break connection in case of short

  15. Marc Field

    Marc Field

    پیش 4 روز

    So basically you just took a 3 minute video to say "If it ain't broke don't fix it."

  16. native pride

    native pride

    پیش 4 روز

    So why do they have holes

  17. island mike rood

    island mike rood

    پیش 4 روز

    Wrong..its just to save on metal..



    پیش 5 روز

    Yes way jous.

  19. michael hompus

    michael hompus

    پیش 5 روز

    Did I miss it? After watching your video I still don't know where the holes come from or what their purpose is.

  20. cole younger

    cole younger

    پیش 5 روز

    It's actually used in the manufacturing process it makes them easier to test

  21. Zack Jandali

    Zack Jandali

    پیش 5 روز

    So weird! I thought about this the other day and then found this while *searching* (not the IRface algorithm) for another video 😳🤯

  22. Old Geordie Geezer

    Old Geordie Geezer

    پیش 5 روز

    Despite your global survey - looking at a few sockets - most older socket designs included either a spring loaded ball bearing or a bump on the socket's wiper blades which enabled the hole in the plug to "click" into place, making it more difficult for the plug to fall out. While it is not "required" according to NEMA, it does state that if it is there it must be a certain size and in a certain place. It is therefore logical that while the hole is not a requirement it was at some time at least an "option". Before standardisation as we know it patent apps included the hole as a method of retaining the plug in the socket. When NEMA came along and started telling everyone how things should be done they had to cater for a large number of designs that were already out there - hence the line stating that if you put the hole in it should be this big and here. Do you really think that companies like Apple and Samsung would got through the hassle of putting holes in their adapter blades if there was no reason for it? This reinforces the age-old maxim "Just because you haven't seen it, doesn't mean it doesn't exist".

  23. matthew schreiner

    matthew schreiner

    پیش 5 روز

    So we do not confuse it with the Chinese plug

  24. Old Geordie Geezer

    Old Geordie Geezer

    پیش 5 روز


  25. Amir Loren

    Amir Loren

    پیش 5 روز

    Wow imagine thinking you were actually gonna learn something.

  26. Michel uwu

    Michel uwu

    پیش 5 روز

    This was insane

  27. Jason C.

    Jason C.

    پیش 5 روز

    They act as a catch so the plug cannot fall out. It’s friction/press Not Mechanical. The hole is round Not square because it’s easier to drill out a round hole than to punch out a square hole.

  28. MarsFKA


    پیش 5 روز

    There you go - three minutes and sixteen seconds of utterly useless information. You learn something new every day.

  29. Rad Thadd

    Rad Thadd

    پیش 5 روز

    So basically it's there because "We live in a society..."

  30. David Clawson

    David Clawson

    پیش 6 روز

    The answer: ease of manufacturing. The holes help the prongs stay in the molding and wiring fixtures while they're being made.

    • Ken Wittlief

      Ken Wittlief

      پیش 5 روز

      correct! why did this guy make a video and post it on youtube when he did not know the correct answer? oh wait... that is what youtube is for

  31. The Legend

    The Legend

    پیش 6 روز

    Why do electric plugs have holes? The answer will SHOCK you (get the joke hehe)

  32. Philippe Guo

    Philippe Guo

    پیش 6 روز


  33. Tai Mai Shu

    Tai Mai Shu

    پیش 7 روز

    Holes holes holes holes holes holes holes holes holes holes holes holes

  34. Barry Kratzer

    Barry Kratzer

    پیش 7 روز

    You still didn't actually pinpoint what the holes are for.

  35. betwixt2worlds


    پیش 7 روز

    Lazy manufacturing, could have saved me some life minutes here

  36. Mark Kohl

    Mark Kohl

    پیش 8 روز

    When you buy a lamp there is a plastic wire tie going through those two holes with a warning lable attached. So that is what the holes are used for.

  37. Dave Kozicki

    Dave Kozicki

    پیش 8 روز

    Very informative, thumbs up. But quit saying actually so much. It is an overused "filler" word. If you remove it from a sentence, and the sentence has the same meaning, there is the proof.

  38. robert mccully

    robert mccully

    پیش 8 روز

    Those holes are for the flux capacitors negative ions.

  39. james cisneros

    james cisneros

    پیش 8 روز

    Excellent work. I watched twice. Good editing & very informative.

  40. K W

    K W

    پیش 9 روز

    They are there so you can ground your kids by locking up their video games and other electronics.🤷‍♀️

  41. David Bronstein

    David Bronstein

    پیش 9 روز

    That's great, but I live in Australia and we don't have holes in our plugs, so that was kinda redundant for me.

  42. Ray S.

    Ray S.

    پیش 9 روز

    I have a pull down cord reel that has an outlet on the end, It has a locking outlet, so that it can't come unplugged. you have to press a button on the outlet for it to release what is plugged into it. ( If the plug has the holes in it )

  43. Will O' Man

    Will O' Man

    پیش 9 روز

    Huh? The hole is drilled out, no? So companies wouldnt have to "add" the material back in. It would technically be one less step in the process to leave the prongs solid throughout. Less machines, time, and probably saves money. And im pretty sure (nowadays) the holes are used to connect/extend wires without having to cut and splice a perfectly good cord. They used to be for pressure fittings to hold the plug in the socket but modern socket designs have made it unnecessary

  44. Chris Tollefson

    Chris Tollefson

    پیش 9 روز

    You can buy extension cords that take advantage of those hole to hold the plug in. They have a little release button on the female connector to release

  45. Turkey Bowlwinkle

    Turkey Bowlwinkle

    پیش 10 روز

    I'm gonna fill those holes and see what hap

  46. ProfessorElb


    پیش 10 روز

    Tldr; the same reason we still do circumcision

  47. DarkSerge34


    پیش 10 روز

    That hitachi wand...

  48. John Lawrence

    John Lawrence

    پیش 10 روز

    Okay then , he still didn’t answer the question why are they there

  49. Vincent van go

    Vincent van go

    پیش 10 روز


  50. Joe


    پیش 10 روز

    I wish outlets would have a click into place and you'd have to press an eject button to remove them, that would save many people from accidentally unplugging it, and it would put the stress on the pegs going through the connector, not the friction-fit connectors, and they'll be less likely to loosen over time.

  51. Michael Carmean

    Michael Carmean

    پیش 10 روز

    Do Nothing Holes ✅ Got It

  52. Lg G2

    Lg G2

    پیش 11 روز

    45,000 Likes... for a couple of holes. Lol, nice.

  53. qwertiedota


    پیش 11 روز

    So you can make one more for every 5 holes you didn't fill up. And 6 is greater than 5.

  54. That Guy

    That Guy

    پیش 11 روز

    The Algorithm Brought me here....

  55. Samuestos


    پیش 11 روز

    I’ve got a high quality modern extension cord with a button to lock and unlock plugs by use of those holes, but crappy plugs get stuck in there because they are putting those holes on without any intended purpose.

  56. citationau


    پیش 11 روز

    Whats the device at 2.04?

  57. Jim Conway

    Jim Conway

    پیش 12 روز

    The holes let the electricity get in.

  58. DoctorDothraki


    پیش 12 روز

    Long ago (around 2007 or something back when IRface video responses were still a thing), I saw a fake tutorial saying that you could power a TV off a AA or AAA battery. The method was to use RCA jacks in the power plug holes and the other ends using a battery. Something like that. Of course, people tried this and it didn't work, including someone using a video response.

  59. Krankie V

    Krankie V

    پیش 12 روز

    Where I work, we have this old extension cord which has a lever you can flip which locks the plug into the cord so it can't fall out. I'm sure it utilizes those holes for that purpose. I wish this feature were present on more extension cords!

  60. WFY Murda

    WFY Murda

    پیش 12 روز

    I never wondered that un til I saw this video lol

  61. Eric Nata

    Eric Nata

    پیش 12 روز

    Why do 🔌 have holes? The same reason that humans have holes on their behind.

  62. h4u5er


    پیش 12 روز

    Well that was stupid... additional process in manufacturing without any good reason

  63. D VK

    D VK

    پیش 13 روز

    I use extension cord that can be locked with plugged-in electrical accessories, the lock`s mechanism use this holes for safety and will avoid unwanted unplug! You can type in google search : "Plug locker Heavy-Duty Extension Cord".

  64. The Beast

    The Beast

    پیش 13 روز

    It reduces sparks on contact from being seen as much..

  65. Hophead


    پیش 13 روز

    I was looking at some extension plugs. On one older one, the holes are on the inside only of each leg and on another, the opposite, holes on the outside only. Both have legs that are folded over and the hole is on one side only. The 3rd has solid legs without any holes.

  66. Kushana Bowala

    Kushana Bowala

    پیش 13 روز

    I dont think they drill a hole they already have it in the mold

  67. Michael Ellsworth

    Michael Ellsworth

    پیش 13 روز

    Personally, I would prefer if they reinstalled to latching mechanism in the outlets... my chargers unplug WAY too easily and often... LoL

  68. Art by Atlas

    Art by Atlas

    پیش 13 روز

    Honestly I liked the first answer about needing a standardized plug, so I’ll go with that one 😂

  69. Richard Iredale

    Richard Iredale

    پیش 13 روز

    First of all, no such word as "indention." You were probably thinking of "indentation." Secondly, the holes were used in the early days to help remove any corrosion on the socket contacts as the plug would be inserted and removed.

    • Silver Cymbal

      Silver Cymbal

      پیش 13 روز

      The original patent documents clearly describe the holes as the retention mechanism the corrosion ability is a myth with no documentation supporting this.

  70. rlitz99


    پیش 13 روز

    It's interesting that the holes were originally used to keep the plug from falling out. The real question then is when and why did the manufacturers stop making sockets to take advantage of that design feature?

    • Silver Cymbal

      Silver Cymbal

      پیش 13 روز

      That's the question I spent hours on. I believe it ended around the 50s, I could not find any example outlets after that with the prongs in use and because so many companies made outlet it varied per brand so one brand may have kept it going longer. The standard itself never actually changed and since they weren't required they likely just stopped using them.

  71. jonnyboat2


    پیش 13 روز

    I kinda remember when I was a kid in the late 60’s and 70’s having trouble pulling plugs out of the sockets. Maybe those holes were doing their job.

  72. David Sharpe

    David Sharpe

    پیش 13 روز


    • Silver Cymbal

      Silver Cymbal

      پیش 13 روز

      The UK plugs were so far ahead of their time when they were created. They are excellent.

  73. Random Spectator

    Random Spectator

    پیش 13 روز

    0:19 I didn't know the Italians made a mjolnir

  74. zurdo


    پیش 13 روز

    typical USA design stupidity. You wanna see REAL STUPID ? look at product packaging in USA products. Food products packaging to be exact. Ever tried to open a food product package? Go ahead and try.

  75. rj hinde

    rj hinde

    پیش 13 روز

    Wow, that's a modern socket / wall receptacle? Ugh...

  76. R Wright

    R Wright

    پیش 13 روز

    I never knew it !

  77. Zero


    پیش 14 روز

    The American plug is shit anyway. The European plug and socket are the best and safest. ------------ Change my mind.

  78. Gamer KING!!!

    Gamer KING!!!

    پیش 14 روز

    U got the reason in 0:50 when u showed the plug u over pushed it and u just got blind or idk there is a little bend fot it ... thats the 1st reason :)

    • Silver Cymbal

      Silver Cymbal

      پیش 14 روز

      Look carefully the holes are chamfered and offer no resistance to the prongs. The original plug patent included actual points that settled into the holes. Those have not existed since at least the 60s

  79. MrChowhua


    پیش 14 روز

    Nope, I never wondered why electric plugs have holes.

  80. rock star2345

    rock star2345

    پیش 14 روز

    I return appliances that don't have holes

  81. Kevin Wotipka

    Kevin Wotipka

    پیش 14 روز

    And it's still a terrible and dangerous design.

  82. Braeburn Hilliard

    Braeburn Hilliard

    پیش 14 روز

    Actually, there are some extension cords that use a locking female end. I've seen it several times as a commercial electrician. Certain drop course utilize those holes and when you plug it into a locking extension cord it does not allow the end to be pulled out accidentally. You have to pull back a release collar to be able to unplug your device.

  83. Teodoro Julao

    Teodoro Julao

    پیش 14 روز

    lock out tag out loto.,. hahahaha

  84. Some Guy

    Some Guy

    پیش 14 روز

    As a European, I don't care that much

  85. TheRulerofEarth


    پیش 14 روز

    On some level i knew this, but didn't want to admit it.

  86. Rick James

    Rick James

    پیش 14 روز

    It really is obvious when they're missing. Not sure why, but it's unsettling seeing no holes.

  87. Medic_Gaming 45

    Medic_Gaming 45

    پیش 14 روز

    If theres a hole theres a way

  88. zz1956 zz1959

    zz1956 zz1959

    پیش 15 روز


  89. sevin furly

    sevin furly

    پیش 15 روز

    With those holes you save so much steel in big production line

  90. onecrazywheel


    پیش 15 روز

    Open up a Hospital Grade outlet. It does incorporate the holes for retention purposes

    • Silver Cymbal

      Silver Cymbal

      پیش 15 روز

      I have opened several and none of them utilize the holes. Hospital outlets are under UL 498 and if you review this document, this is not required there either.

  91. Damon Thomas

    Damon Thomas

    پیش 15 روز

    Most plugs have holes in both prongs, but the plug on my electric golf cart only has a hole in one.

  92. Letrixo


    پیش 15 روز

    Europeans: *what?*

  93. Lamtitude


    پیش 15 روز

    So wtf are the holes for, dick? You can’t make a video like that and just leave us hanging.

  94. Peter Epp

    Peter Epp

    پیش 15 روز

    “Indentions”? Is that like an intention to make a hole? Or did you mean indentations?

  95. josh ice

    josh ice

    پیش 15 روز

    Probably won't see this but great vid bro I dont know have I have never seen u before

  96. matyrdoomツ


    پیش 15 روز

    Yeah probably because of design to help electricity to get in

  97. joffaute


    پیش 15 روز

    After all that you didn’t tell us the reason

    • Silver Cymbal

      Silver Cymbal

      پیش 15 روز

      The holes replaced the indentations that Hubell had originally used in early outlets to hold the plug in position 1:00 - what they became later is explained further in the video. Hope this is helpful.

  98. Pouring Kahuna

    Pouring Kahuna

    پیش 15 روز

    Some extension cords have a locking mechanism in them to go into those holes so when you move the cord stays plugged

  99. rigomortisfxstudios


    پیش 15 روز

    some do not have them made now

  100. FireTech


    پیش 15 روز

    2:03 nobody actually going to talk about that lol