2002 Corolla Hatch Aerial Screw Size?

[Bernie Steakouse]

Hello, Happy New Year to you all... It's question time again...

Could someone tell me what the size of the screw/base is on a 2002 Toyota Corolla hatch? I'm needing a replacement and there's not many (if any) listed for the Corolla, but a lot of 'universal' bendy whip aerials list the screw size as 4mm, 5mm, 3mm etc. I'm basically after a direct replacement for the factory fitted version.

[Bernie Steakouse]

Or, if it's easier, what other cars does it swap with? For example in Halfords they didn't list Toyota among the fitments for their bendy whip aerials, but they had one that was basically VW etc and another that included the likes of Vauxhall. Is it interchangeable with any other particular cars/makes that are more possible (and therefore easier to find in Halfords, on eBay etc).

Thanks.