With the original screw, I found that the weight of the phone was enough to push the nut up the screw, making it difficult to keep it in one spot. That is mitigated by this new screw and nut.
There might be a few teething issues since I am still relatively new to this whole 3D printing and modelling thing. The supports for the screw are slightly more annoying to remove due to the shallower threads. The tolerances are tuned for my printer which may not be dimensionally accurate. I've included the Fusion 360 file in case you need to make any adjustments for your own setup.
The author remixed this model.