The SMA connector is long enough to be chassis mounted.
Sold individually.
10cm SMA Female (female pin) version:
https://www.ebay.co.uk/itm/274400959550
15cm SMA Female (female pin) version:
https://www.ebay.co.uk/itm/274400959218
20cm SMA Female (female pin) version:
https://www.ebay.co.uk/itm/274400957045