There will always be a weakest link. At some point you just gotta be an adult and not build things to within an inch of their lives for the use they will see and then have the self control to not push the limit. Resources are limited and engineering tradeoffs are everywhere. These discussions always devolve into absurdity very quickly.
It just isn’t very absurd to worry that the question mark brand of load bearing fasteners are properly rated.
I avoid the issue by not buying them, a lesson learned from my experience working in the QA field. I wouldn’t expect a teenager to have learned this lesson.
