I'm doing a remodel in my bathroom, my bathtub has 4 metal caps or plugs that are located 2 on each side. I would like to replace them, but am not sure where to get them or if they are attached from the bottom with a nut and washer. see attached photos. I would appreciate any suggestions

Repost this in your existing thread in the plumbing folder. From that picture I thought that the holes where in the side and not the deck.

Also is this a deck mounted tub or a free standing. A picture of the other side will make it clearer.

The holes aren't exactly in the deck, there is an angled edge between the deck and the sides and that is where the holes are. BTW I also posted this in the plumbing folder. As I not only need to get information, but the replacement PARTS for this.