Well now this is just plain embarrassing. I took a good look at the hole in question under a different light and compared it to the two other holes I ...

Thanks for your response. I should have mentioned that I've given up on mounting screws and decided to use an adhesive hanger. I'll sand away a bit of ...

That's odd. The metal seems not to be ferromagnetic. Interestingly the faucet is the same. I've tried the magnet on many other objects and it certainl ...

How well would a cheap stud finder work? The reviews of the cheap ones aren't very encouraging so I'm uncertain. My landlord gave me permission to mou ...

Thanks for your response. I'm not sure if it is a stud. If I thump the wall it sounds very hollow. About 20cm to the right there is definitely a stud ...