And a look in enineering literature and norms, EN for example, woupd tell you thatvall those different screw types, from heads and pitches to strength and surface treatment, are, in fact, stabdardized and normed.

And of course you can get custom parts for everything. Those are, as the name implies, custom and not standard.

The point is that EN standards are set by industry, not government. This is a reply to a comment about supposed government regulations around what a screw is allowed to be.

And they are based, after having replaced a bunch of national predecessors like DIN, on an EU regulation providing the legal basis for them.

Ehich makes Apples bahvior even worse, litterally everybody else managed to agree on common standards, but thay had to insist on proprietary tech to the point they got their set of legislation.