[460 Delta]

Coming from a past in hydraulics etc I'm used to stuff like JIC fitting where everything is standardized and there is technical information out there. Or is it that everyone makes their own lugs and their own dies and gets them listed together just so you have to keep buying from the same company.

There’s more similarities than you realize here. You’re not supposed to crimp an Aeroquip fitting with a Parker crimper are you? We all have though. No manufacturer wants to take the time to make sure that a crimper from Gates will make a proper crimp on a Weatherhead fitting.
It’s pretty much the same in electrical, buy their crimper and their terminals.

 

[460 Delta]

View attachment 160122

If I wanted to get fancy I could pull the bare wire out of some romex and serve up a joint like the bottom picture. Add some solder and rubber tape, that thing ain't going anywhere.

You forgot the layer of friction tape over the rubber tape.