The darn thing comes of the hinges, I tried metal washers, did not work, tightening did not
what to do?
Buy a new one. I had same problem with the cheaper one. It's worth the $20-25 for piece of mind. Good luck
If the toilet seat is in new condition, I believe most stores that carry toilet parts will carry new bolts. These might have become stripped and you need new ones. They only cost a few dollars. good luck!
The one I bought at Lowe's was better than the oneI purchased at Target. The prices were not that different.