Cargo box attachments

Need help with terminology. Or a link to a product if some knows offhand. Tried searching but I obviously don’t know what exactly to search for. I have a Cargo box for my wife’s car. It has the feet that slide into the rail and tighten up from inside the box. Is there an adapter that I can slide those feet into that can clamp onto my OEM tacoma roof rails? So I can use the box on either vehicle? A recommendation on product (if it exists) or even just what those style feet attachments are called so I can search myself, would be greatly appreciated. Thanks.