I need it for 3d printing, and im at school so i cant just conveniently measure it myself
https://www.paramountglobal.com/knowledge/bottle-neck-thread-finish/
I think if you want your question answered you will need to use the proper technical term for the measurement you're looking for. As a mechanical engineer that doesnt specialize in bottling, I knew there were more technical definitions for these parts so thanks for sending me down the rabbit hole.