Anyone know where I can get one or a set of these? center cap nuts..

[RB240Mike]

Ok sooo ya was at a local meet I guess some dip shit loosened one because they were all tight as fuck anyways came off and could never found it, luckily I found the disk thing it holds on. It's like a nut that holds on the center cap.. either need one matching one to mine.. doubt I'm gonna find that.. or a whole set, I know a few companies make this type so wondering if anyone has any info for me. Here is the nut and a pic of it on the wheel.

Ok nut looks like this


holds this on


then screw on like this


it's pretty basic and been thinking lately I'm probably SOL and should just go to a machine shop and see if they can make me one.