Info on the Bolt Sorting Sieve, and links to other screens, can be found HERE

A 'screen' for m6 button head and socket head fasteners my little bolt sorter. Each screen prints in about an hour on my settings, with no supports, brims, etc. needed. I printed mine from PETG with 0.48 layers on a 0.6 nozzle. I probably would have gone with PLA if I had any handy. I think the stiffness of PLA (and a bit better dimensional accuracy, at least with my machine/settings) would probably be good for longevity with the bolts beating against the interior. But, that being said, I'd shaken a good number of fasteners in my other PETG screens, and they are still holding up pretty well thus far!