Hanging shelf wall bracket

My wife wanted to buy an expensive slat wall type shelf to put plants on. I bought some 1"x2" boards and made a basic grid then designed this bracket to hang on them. Used a large flange flat head screw to mount either 1"x6" or 1"x8" boards cut to any length.

I printed this with a 0.6 nozzle

No supports

15% infill

3 perimeters, could probably do 2 perimeters and be ok.