Bert, I am suitably impressed with your detailed analysis of this riveting topic! Boy, this is a classic example of how an errant term can be carried forward for years by carriers who don't know any better. In the dental realm, the region of a molar tooth where the roots split away from one another is called the "bifurcation". You can see the root bifurcation on my key ring.
For years artistic renderings of Moses depicted him with horns on his head. Perhaps the best known example would be Michelangelo's sculpture of Moses created for the tomb of Pope Julius II. The tomb and the sculpture is situated today inside the St. Peter in Chains Cathedral in Rome. When Jerome created the Vulgate, the Latin translation of the bible in the late 4th century, he used the term "cornuta" to describe Moses as he came off the mountain after meeting with the Almighty at the summit. Jerome used the term in reference to Moses reported radiating or glowing appearance. But readers of the Vulgate took the term "cornuta" to mean "horned". And so for centuries believers thought Moses literally had horns!
I vote that we correct this errant use of the term "bif" rivet, just as the notion of a horny Moses was ultimately corrected. If you think about it JP, how many people study regular wheel models to the extent that they even know what a bif rivet is within the MATCHBOX Toys world of variation study? It can't be more than a couple hundred people. If references like Nick's began using the proper language for these rivets it wouldn't take long at all before people knew the true story.