I posted that one in a Linux forum. You miss the real story; it isn’t a lack of machining skills:
'When Mr. Melo bought Caldwell in 2002, it was capable of the high-volume production Apple needed. But demand for that had dried up as manufacturing moved to China. He said he had replaced the old stamping presses that could mass-produce screws with machines designed for more precise, specialized jobs.
Mr. Melo thought it was ironic that Apple, a leader in offshore manufacturing, had come calling with a big order. “It’s hard to invest for that in the U.S. because that stuff is purchased very cheaply overseas,” he said.’
'American workers won’t work around the clock. Chinese factories have shifts working at all hours, if necessary, and workers are sometimes even roused from their sleep to meet production goals. That was not an option in Texas.
“China is not just cheap. It’s a place where, because it’s an authoritarian government, you can marshal 100,000 people to work all night for you,” said Susan Helper, an economics professor at Case Western Reserve University in Cleveland and the former chief economist at the Commerce Department. “That has become an essential part of the product-rollout strategy.” ’
As I pointed out on the Linux forum, the real problem is custom fasteners. There’s no reason they can’t use stock parts. Maybe it’ll add a gram, but anyone can replace it. I suspect that’s the real reason. The original Mac required an extra-long Torx screwdriver. I made one by welding a bit onto a flat screwdriver I cut the blade off.