Closetmaid compatible test lead / wire hanger.

thingiverse

Hanger for test leads (BNC, banana plug, probes, etc.) that can mount on verticals for typical modular shelving systems, like rubbermaid, closetmaid and Elfa. Top is sloped 10 degrees to deter leads from falling off and hangers are chamfered to prevent sharp edges from damaging wires. Slots are 7 mm wide and 16 mm center to center and about 18 mm deep. Prints easily in 0.25 mm layers with 15% infill.