Print this with the chamfer side down, i modeled the filament hole with a lot more clearance so any inaccuracies from it sagging should be offset. The screw holes on the side are meant for M4 Screws and you can use either standard M5 wedge nut or as i found works pretty well is just normal M5 nuts with a washer. I put these files with a public domain license so feel free to sell these or incorporate them in your own design.
The author marked this model as their own original creation.