Edit 01/13/25: I added new print profiles (and STL's) for a version without supports and moved the L/R letters out of the gusset to the main vertical. 

Do you have this Husky shelf with the oddball key hole for shelf placement? If so, then this hook will work for you!

I've created a Left version (vertical is on the left as viewing the shelf) and Right version (vertical on the right as viewing the shelf) to make it easier to print 1 or the other. The 3MF file includes both on a plate, so delete the one you don't want. I've included individual STL files for you to grab instead. 

I used trees to support the gusset on the plate side. It doesn't look pretty once it's removed but it's still functional. If you have a better suggestion, please let me know. 

I'm using this to hang some back packs off the side of my shelf to get them off the shelf and off the floor. I used PLA to print them and they seem to be holding up.

I can't guarantee how much weight they can support but they should work for fairly tame applications. If you test it out, please let me know out of curiosity. 

If you need to light up your workspace, please take a look at my Husky LED Strip Clips.