door lock screw

[Max]

Hello!

I have a problem with 2000 Mazda Protege LX.

There are three screws around rear door lock tightly attaching it
to the door. One screw occasionally came unscrewed and lost.
So I need such a screw.

I'd prefer to buy it on-line but don't know how to specify what I need
What is a proper name/description of such a screw to look for it?

I'll appreciate any help.

Thanks,
Max

[mazdaguy]

Take 1 of the screws out and go to an auto parts store and match it up.