This is a remix of the T8 rod holder by @kakou_fr
I made the holes for the nuts to have a better compression and to lock them surely.
Amazon Basics PLA
Sliced with Simplify3D and printed on modded Ender 3.
How to put nuts inside
To put the nuts inside the holes just insert a common M3 screw trought the hole and keep on twisting untill the bolt reachs his slot.