Greetings and cheers from Overseas!

I recently bought an old Acrolite which came with a blackface P85 strainer, the model with many small holes for the snare wires.

Unfortunately, the screw with the tension knob is missing. Sure, I could simply buy a brand new P85, but I kind of wanna keep the spirit of the drum.

So now I am thinking about replacing only the screw. Does anybody know the thread size of this?

I live in Germany and normal hardware shops only host metric screws, so before I order an inch-screw I want to be sure if the correct thread size.

Thanks in advance!

brazzo