Bidet screw adapter for toilets that use threaded metal screws instead of large plastic nuts and bolts to prevent a replacement toilet seat or bidet from rocking.

My printer isn't super dialed in so I had to enlarge the hole with a drill to have the threaded part of the screws go in. The head of the screw had to be forced to go in the recess with a clic (still turned fine).

onshape link: https://cad.onshape.com/documents/97d7be585b918dbec02d02f9/w/6b2fe0acbed9fc40dc01328c/e/c85cf8f7e08d6e495e965a91