The bolts used for mounting push plates to Schwab toilet tanks may break after a few years. These files should be a cheap way to replace the original parts.
I did not replicate the design exactly, but it works fine for me. Three screws of different lengths are added. There are also step files if you feel the need to adjust something.
You absolutely have to print these lying and with supports. I would suggest not to use PLA, but PETG, PC, or preferably Nylon instead. I used four perimeters and 0.15 layer height. A 0.4mm nozzle is fine. Use the 3mf file for reference.
The author hasn't provided the model origin yet.