No, I didn't try it first.
I just made it up as an example of something that I had failed at in the past, on the basis that this kind of technical specificity has generally lead to daunting results in the past.
Finding specific things has generally been a frustrating mess for me on Amazon.
But I did try it just now: I searched for "ring terminals 12 #10" and got a long list of stuff that is actually worth considering.
WTF?
This is good and welcome, but it was certainly unexpected.
Perhaps their search engine has improved for some of this kind of thing.