Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3245957.

Reverse engineered the trunk grocery hook for many Honda cars.

You will need the following parts to mount this grocery bag hook in the trunk of your car:

Bolt, Hex. (6X20) Washer, Plain (6mm) Qty 2 Washer, Spring (6mm) RIVET NUT (6MM) Nut, Flange (6mm)

You can get these parts here (or at your local parts store): https://www.hondapartsnow.com/parts-list/2018-honda-clarity-plug-in-hybrid-4dr-plugin-clarity-phev-ka-cvt/cargo-hook.html

The trick is mounting the RIVET NUT. Here is a YouTube video I found that shows how to do this easily with a $1.29 in parts (supposedly the 'proper' tool for mounting RIVET NUTs is very expensive): https://www.youtube.com/watch?v=_PI6gOqiF70

OR!!

As a commenter provided, you could simply get this:

https://www.homedepot.com/p/Crown-Bolt-1-8-in-x-2-in-Zinc-Plated-Mushroom-Head-Toggle-Bolt-Anchor-10242/100349321

OR this:

https://www.homedepot.com/p/Everbilt-1-8-in-x-2-in-Zinc-Plated-Toggle-Bolt-with-Mushroom-Head-Phillips-Drive-Screw-4-Pieces-803702/204273385

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/kUfuNtaB7dV