Hey, perhaps people who need such small screws can speak to someone who works in camera/electronics repair.
As I imagine that they are the people who would have screws of a similar size.
I am not sure if it is possible to use the mac mini without the mobo fixed properly with all screws. Although I imagine that this is possible although not advisable. Perhaps one alternative solution is to find a cheap new case for your mac mini, which comes with screws?
Although I imagine that this isn't an ideal solution either as Mac Mini's generally look pretty cool and I am not sure if any manufacturer out there makes an alternative case designed specifically to house the mac mini.
Personally I think that Apple are typically mean to not offer a service to supply such basic component parts. I imagine the cost of such small parts as screws would be a penny for half a dozen. And keeping in mind the likely hood of losing such screws when upgrading or fixing. I think they are very mean!
Especially for mac mini mobo screws which are an unusual size not found from most computer component suppliers!
Boo Apple. You mean buggers!
If I didn't use Apple Logic Pro, I would likely not use apple as they are miles more expensive than other manufacturers and their OS doesn't offer that much extra than os like Ubuntu which is completely FREE!!!
Don't out price yourself out of the market!