Need Replacement Coax Wifi Connector - Any place to buy?

Hi all,

after continues unplugging and plugging in (after various tests of the water daamged Macbook of my aunt) one of the Coax connectors for the wifi or Bluetooth antenna broke off and needs to be replaced now. Any idea where I can buy a replacement? I uploaded an image where I marked the said connector bellow:

I have no 100% size measurements but I think the size is 2.6mm lenght 2.6mm width and 1 ish mm height (used an rubbish ruler that I had laying around sorry).

There are certain names for these coax connectors to identify each one and not all have the same size I think, so any help on these to identify them would be helpfull. Thanks :-)