DIANA Airgun Screw for Adjustement of Height

The two pictures show two different screws for the adjustement of height for old DIANA airguns. Many models used these screws. The older screws have a left-handed thread and the newer one have a right-handed thread. The newer ones can be found fairly easy in airguns stores. However I wasn't able to find the older version.

The files should be usable for both versions.
Simply print the file and screw the part in. The threads are generated in the process of screwing it in.
Version 2 has worked better for me (it is slightly smaller).

If you have any problems/questions simply contact me.