Storage Rack Hooks

I made this sturdy hook to mount securely to keyhole mounts found in rack shelving. Specifically to suit the hole spacing and size of the heavy-duty racks sold in Bunnings Australia (Pinnacle brand). The hole spacing is approximately 41mm. I printed them in CF-PETG for a nice finish as well as resistance to bending over time, but I'm sure PLA would be fine too. Can be printed with 100% infill for extra strength. As is, they will only use about 12g of filament and easily hold a few KG. Ideal for hanging cords, tape, rope, etc.