Missing 4 Screws, not sure what they are
Hi, I've just recently replaced a broken hard drive with an SSD in an old iMac that was lying around. It was already opened, and there are four screws missing.
I'm missing two of the green circled screws (holding the hard drive in place) and two of the red circled screws (holding that large black piece in place)
Not sure what these screws are called or where to find them; iFixIt does not have any iMac screws on their shop.
Thank you.
1.1千 
895 
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