I'm cleaning my oil pan and replacing the gasket and there is this round circle with two holes for bolts on either side, but there's no cap.

Car was running so it apparently isn't necessary.

Have no idea what it is, what to call it or what it's for so can't do a search.

Can anyone help?

Also does the oil pickup have any sort of pre screen that goes in the bottom? It looks like it would hold something but haven't seen photos of anything there so not sure.

Thanks

 

Please IGNORE.
You do not have an oil cooler.
Carry on.

 

I think that if you look up inside the end-housing, the coarse mesh is inside.

Richard