TPS (throttle position sensor) screws

[700SN]

Hi I reckon the heads on mine are rounded.
I’ve been told they are actually TS20s. This means they are 5-star instead of normal 6-star Torx .
These are just the simple 2 screws that hold the TPS on to the throttle body.
However I cannot find them on Jaguar parts numbers or in SNG. I’m sure they are only a couple of quids worth but as I don’t know the actual thread etc it’s difficult to see an alternative.
Does anyone know the part number or what type/alternative I can get instead?
Cheers!