These are the threaded inserts for the tilt/tent kit.
To replace the inserts, you'd need to open up the keyboard. This just takes a screwdriver. There's no glue or clips or anything mean like that. :) You would have to remove the big sticker on the back (with the Indiegogo logo) to get to the last screw, but once you do that, the board simply comes open. You'd then be able to plop the existing inserts out, and put these brand new ones in.