Doorknob (Round in Shape)

[Bobbert]

http://www.fixitandfinish.com/how-to/how-change-doorknob

What is the word that is used for a round doorknob for a Mexican audience?

I am not speaking of a doorknob that has a handle like a manija or agarradera. I am speaking of a round doorknob as in the image.

Perilla? I understand this word to be any kind of knob, but is it also a proper word for a round doorknob?

Pomo? I have heard this word used in place of "frasco" or "botella" in parts of Mexico, but is it also a proper word for a round doorknob?

Picaporte? I think of this word as more of a latch-type knob, but is it also a round doorknob?

[aleCcowaN]

Perilla is used in Mexico, the same way in Argentina we just say manija. The most extended word is picaporte. Pomo is reserved for rounded fixed knobs you hold to open and close a door or a drawer.

There is some type of lock that has a pomo and a keyhole on the outside, intended to just open with a key while you hold and push the pomo; and it has a rounded knob, almost the same aspect, on the inside, but this time it's a picaporte, as you can rotate it when you're in to open the door without using any key -they're locked using a button in the centre of the round knob that is pushed in.

[AngelicaDeAlquezar]

We use "perilla" for the round doorknobs, because they remind the shape of a pear. For the lever kind, we tend to say "manija", which is also the handle of some drawers.
"Picaporte" is not very used, but it refers to all kinds of doorknobs.

If you say "pomo", we also understand the round kind, but very few people use the word.

As for the other meanings of "pomo", when it means a bottle of an alcoholic beverage, it's slang and not a very nice word to use among all kinds of people. When it's some kind of "frasco", it's usually like a pot of cream (a cylindrical container in plastic, metal or glass) "Frascos" here, are usually taller and bigger than "pomos", and always made of glass. :)

[Bobbert]

Thank you.