Metric M12 Screws/Bolts/Nuts/Washers
These models are optimized for FDM 3D printing and should fit without the need for rescaling.
No supports needed if you print them standing.
They are still compatible with standard metal bolts/nuts.
For better strength, try printing them with a few more wall lines.
Smaller layer heights result in better threads.
DIN 933 Hexagon head screws
DIN 934 Nut
DIN 1587 Cap Nut
DIN 315 Wing Nut
DIN 125 Washer
DIN 9021 Washer
Other sizes:
Recommended Print settings:
-PLA/PETG/ABS/PA/PC depending on the use case
-0,16mm layer height or smaller
-minimum 4 wall lines
-4 top an bottom layers
-30% Infill