Hi I'm new here so hopefully this in the right spot but I'm needing to know who might have manufactured these wheels on my truck, I'm needing to get a lug nuts key for the splined nuts. I've tried several off eBay and from auto parts stores so I'm convinced that they must have come with the wheels. Any suggestions would be appreciated thanks.

 

You need to know the even harder question. Who made the lug nut. You best bet is to go to a rim shop

 

Looks like the standard 6 spline key, find the nearest ricer wheel shop, they will have one.
I needed a set of lug bolts (yes I said bolts) in a hurry once for my Diesel Beetle so I got a set of those local, as soon as the standard hex ones came in the splined ones went in the garbage. I saved the key in my tool box, it's nice to not have to go searching the customers car for theirs.

 

unfortunately without knowing the manufacturer, you are going to have a heck of a time finding the proper key.

what i did when those come into the shop without a key was hammer an impact socket onto the nut and get it off. then drive the nut out of the socket and repeat until all were removed. then put regular acorn nuts on.