Summary

M4 & T-Nut zip tie mounts.
I was using sticky-backed zip tie mounts and I keep moving them. Which makes them no longer sticky.
So, now here are M4x8mm bolts with T-Nut zip tie mounts that really work well.
They are almost print in place, but it needs a little bit of supports on a part, but I was able to make them come out easily. The 45 degree zip tie mount is harder than the others to remove the supports, so be careful.