This is my single version of salt or pepper shaker for outdoors, hikers, bikers etc.
I added a version of part 03, which is 0.3 mm wider in diameter (freer thread). If you print the standard version of this part with a material from different producer than part 01, it may not be screwable.
No support is needed, but use the brim to print part 01 (body with hook). Wall thickness is 1.2 mm.