Access cover for sewere cleanout in tile

[unique3]

I am putting ceramic tile in my basement bathroom and I have a sewer cleanout that I need to cover up with an access hatch. The cleanout is about 8 inches down a hole below the grade so I have plenty of room for a cover. I have seen installed brass (or something like that) covers that are screwed down but I haven't been able to locate them online or in a local store.
Could someone please direct me to a website that has these.

At the same time I am looking for a cover for a floor drain, the drain is one of those old heavy metal flat plates with holes in it, I would like to remove the plate and add a nice drain cover that would be flush with the ceramic tile. Also having problems finding that.