I have a bunch of non Re:Flex binding discs with screws for the older Burton bindings that allow you to mount on boards with Burton EST Channel. Given, I don't have any older burton bindings I no longer have a need for these. I know sometimes these can be hard to find, call with any questions. $15 per pair with 4 screws included. I also have other binding hardware for toe straps and high backs. $5-$10 depending on what you need. Home mountain is SnowBasin so if you're out that way a meet up is easily doable.