June 25, 2023 Update:
I do not have M6 bolts or nuts when needed, decided to create myself. I expanded this project to support multiple length as needed for other purpose.
When printing, depending on the strength you need, you may want to have higher perimeter value, or use modifier in slicer to strengthen closer to head part by even higher perimeter and/or infill.
Each bolt has thread surface offset by -0.1 mm so it functions with the printed nut.
I personally put modifiers in the head to strengthen by adding more perimeters (12) but it is your choice. You may print with 2-3 perimeters with higher infill.
I would really appreciate you if you can support me !!!
The author marked this model as their own original creation.