This is a mounting bracket that uses M6 screws to hold an aluminum extrusion. It can hold an elliptical or circular profile with 15 mm diameter. Just print two brackets and space them apart to fit your extrusion.
Supports: No (If you are having problems printing the threads, then yes)
Material: PLA+ or ABS
Layer Height: 0.2
Infill: %60
The author hasn't provided the model origin yet.