replace backseat coat hooks with bolts?

Looking to make a storage attic for my 2nd gen access cab. I've got a flatirons overland one, but it's pulling the headliner apart with the hooks so looking to fashion something more solid for my jackets, safety vest, hard hat etc to leave room on the seat for the dog.

Does anyone have any pointers to replacing the coat hooks in the backseat with bolts so I can attach d-rings or directly bolt there? The hooks are just press in plastic clips, I'm hoping someone sells a way to attach a metal threaded attachment point there but I can't seem to find anything.

Any suggestions? Thanks!

 

Nursert or rubber well nut.

 

FWIW there is/was a guy that made 3d printed bigger better hooks.

I’d hope it doesn’t get in the way of an attic storage net or overhead MOLLE panel that bridges between the grab handles.

Theres also various rear window MOLLE panels.

 

I don't have any suggestions, but I found a picture of a gutted access cab that may help with your project.

 

Here is how Raingler does theirs. But your nets anchors are in different locations. Does the flat iron net have enough room to make 2 rear attachments at the C pillars and 2 forward attachments at the ceiling plastics/door latch area?

https://vimeo.com/316583852