I added a tolerance of 0.2 mm to the thread diameter in order to compensate for printer tolerances. Print with small layer height, e.g. a maximum of 0.15 mm for a 0.4 mm nozzle.
Please find screws for the nuts here: https://www.printables.com/model/1345044-hundreds-of-metric-hex-screws-m2-m3-m4-m5-m6-m8-m1
Please find standard nuts here: https://www.printables.com/model/1345178-complete-set-of-metric-nuts-m2-m25-m3-m4-m5-m6-m8
The author marked this model as their own original creation.