Which Screws for Curtain Rail in Ceiling?

[panthro100]

I've previously asked about putting up a curtain rail into my ceiling. I've found the wood beams and I've been told to use wood screws.

Upon visiting B&Q I was met with an entire shelf full of screws and I do not know which one to pick.

Any advice on what to pick?

Here's a picture from the instructions, seems it needs a rounded head?

 

[Wayners]

Pan head screw. Often sold as a self tapping type screw.
Length=Fitting+12.5mm plasterboard+30mm Ish into wood.
Also needs to be narrow enough to go through hole.

 

[panthro100]

Thanks for your help

Pan head screw. Often sold as a self tapping type screw.
Length=Fitting+12.5mm plasterboard+30mm Ish into wood.
Also needs to be narrow enough to go through hole.

Thanks for your help