Thread pattern question, storage bag setup help

Good morning. I have a utility model truck. I have this nice soft bag that I bought for my four wheeler that I did not end up using. Planning to use it for storage, mainly winch accessory's in the cab of my truck. Trying to mount it, so it stays put in the back and level on top of the OEM storage box. my question is about these plugged threaded bolt hole areas in the rear of the truck, I would like to use those two thread in some type of a hook ideally and then run straps off the bag. Been trying to find out what the thread pattern as of those bolt holes does anyone know? They are on both corners, rear interior of my truck.

 

sorry I can't help you, but I would like to know who makes the bag. I could use something like that.

 

Take it to Ace hardware and ask to have it sized. It's most likely going to be a metric size, I'm going to take an uneducated WAG and say M8. But what do I know, my back panel looks different than that.

 

I built ( well I confess the wife did it ) this platform to hold our

$761 Dometic CFX3 35 Portable Refrigerator and Freezer - 36L - Powered by AC/DC or Solar Portable Refrigerator, Smokey Gray

Dometic CFX3 35 refridge unit.
Works well I just leave in in there all the time, works very well.
Jackery 1000 Pro sits on the other side to power it, and plugs into an installed 12v tap in the well to keep
the Jackery charged while driving. Love the setup.

 

Kolpin Atv bag..

 

thank you for the information