...They aren't wrong , just bad...
That's not a bug ChopSaw, that's a feature--self-locking threads!
You're a vanishing breed...a person with their own tap and die set. I'm amazed at how knowledge of basic shop practice is disappearing in America. And no one seems to care. And at a time when decent hand tools are dirt cheap!
Oh well, off my technology soapbox and onto my biz one...any company, esp one as large and with a ($-valuable) reputation like Weber's, is crazy to let products like this ship with their name on it. People expect things to work right the first time and the clearly-identified, bargain-priced, "made in China" companies continue to up their game...including clean threads and good welds. At least
I'm impressed. (And even happy for them...the most-recently
Human Development Index shows they're the most improved country.)
Weber needs to be VERY careful about what they're shipping or they'll not have a market within a decade.
99% of all casters probably come from China today. Heck, I wouldn't be surprised if there's not a little subtle sabotage going on by giving the "American Brands" substandard stuff. Hey, it's business. And Weber is just plain stupid if they're not at least aware of the possibility and have an ongoing quality program involving ALL of their suppliers to spot this early and nip it in the bud.