When mounting a compressor, the studs are used for keeping the compressor from walking. The nuts are just screwed on and not tighten . Check your manually on mounting.

I've installed many of these any had service calls where customer stated tank leaks at mounting foot. Get out there only to see that compressor was bolted down tight to slab. Even though we are all certified welders and ASME, shop said no to repairs. Always read manual because manufactures changes .