I found the solution to our problem. The mini o rings under the rmr plate are watch size O rings. The size is 3.6X1.7X0.8 ring. Unfortunately You have to buy a whole box of watch o rings to get the right size but it comes with plenty in that size if you lose them. I didn’t have any when I bought mine and the screws kept coming loose. The problem is now fixed and the screws are not backing out
Just passing on the information to pass to others.
Just passing on the information to pass to others.