How do I RE-install a steel crawl space door? I had a steel crawl space door on my house and then...

I had a steel crawl space door on my house and then it come off. I think the relatives that installed it didn't use the correct screws for the foundation and it pulled out of the concrete.

So, how can I put that back. What sort of screws? I think I enjoy to make new holes within the steel and the foundation. What kind of bit or hardware do I need to create a modern hole in the steel? I don't think I'll be capable of use the holes in the foundation because it's crumbling at the screw point, I think, because of the unseemly screws.

My level is intermediate. I've put up interior doors, laminated my countertops, and installed my kitchen sink.
Could i build a robot resembling Terminator from...
Answers:    Hi, first I'd try some concrete patch, step to the lumber yard and ask for it, fill the holes. The holes surrounded by the steel frame should be ok. Wait for the concrete filler to set and use a masonry bit to drill new holes. I'd get longer screw, not bigger, and sink the new screws deeper within the foundation wall. Hope this helps ya! B