Even though I've used the one word phrase "thingy" a lot of times, I do like to know the correct names of 'thingies.' Heck, at one time it was quite a quirk of mine as there's a surprising number of 'mechanics' that don't know the correct names of basic tools. Then, in an industrial setting, one of my side responsibilities was to catalog and make a database of the tooling using in one section. If you had 30 mechanics, there would be 15 different names for the same tool!
Trying to educate everyone to be on the proverbial same page turned out to be a daunting task. Iíve lived coast to coast, and north to south, so for most of life, things were all called the same thing in various parts of the country. But thatís no longer the case. The newer folks have no idea what a real monkey wrench is, for example. Probably since they havenít been made in probably 30-40 years. I can understand that.
But itís getting more and more fuzzy in different ways. For example, take socket wrench adaptors typically used in, oh, the auto industry. The standard convention has ďalwaysĒ been ďfemaleĒ size to ďmaleĒ size. So if you saw a written description of a 3/8Ē to 1/2Ē adaptor, you would instantly know the 3/8Ē would go on the ratchet and the 1/2Ē would be the drive size of the socket (or whatever) that would go on the other end.
But no more. The Ďmajorí manufacturer still use that convention, but there are a surprising number of no-name, and import manufacturers list the male side first! So even tool manufacturers donít agree on what tool is called what.
So, to tie that into the rivet / grommet part of all this, I am currently thinking that in the context of wiring securing, if itís one piece, itís a rivet. If itís two piece itís a grommet. If itís small enough, it could also be called an eyelet.