[ozim]

I read the comments and I agree but I would describe that in my way:

Car mechanic buying bolts needs to know thread and sizes of bolts, he does not care about "our bolts are best bolts in the world", if he would spend an hour with sales rep that feeds him marketing and in the end it turns out they don't sell what that mechanic needs, it will make him angry.

IT people or "nerds" know what they need and they have specifications to meet. Making it an "ego" thing is silly :).

[bluGill]

Car mechanics care about the standard. A grade 5 bolt is different from grade 8, even though grade 8 is objectively stronger there are many places where they are too strong and so you need to use the objectively worse bolt. I don't remember the terms metric uses for the above, but there are metric equivalents for the same reasons.

[tehbeard]

That's a misinterpretation. Best bolts in the world doesn't mean strongest, that's where we'd use the word strongest. Best bolts is an opinion.

A max strength before shearing/failure is just another req. for the task the mechanic wants to know, it doesn't make them objectively worse unless they were used in a situation where they needed to be stronger.

[bluGill]

I didn't want to type in a 1000 page engineering textbook. What I wrote is close enough to make the point, but you are correct as well.