Heavy Duty Hook for Garage Shelving

I use a lot of 'hammerlock' style shelving in my garage.  It's the sort that is assembled using a hammer to attach shelving rails to pre-punched uprights.  They are a common product in Bunnings (an Australian hardware chain).

I had been using bits of bent fencing wire as hooks to hang things like coats and power cords from the uprights.  Not most elegant of solutions ;-)

I saw @pkshadow_134415 's Heavy Duty Wall Hook - and quite liked the look of it.  I used their design as inspiration for my own design of the hook.  I didn't use any measurements from the original - but our designs ended up looking look very similar indeed.

I sized my hook so that not only can it be screwed to a wall (like the original), it can also be bolted to the uprights of the garage shelving using a couple of M6 x 16mm  bolts and nuts.  The spacing of the bolt holes was the critical factor.

Printing:

Depending on how strong you want the hook to be you can vary the various print settings.  My first one (pictured) was printed in ASA with 4 perimeters and 20% cubic infill.  It feels quite sturdy indeed.

Update 18 May 2026:

I added two more STL files for those that want to wall mount these hooks using 8G and 10G self-tapping screws.  Try not to use countersunk head screws for installation as they will tend to split the prints when tightened up.  Flat-head self tapping screws are far more suitable.