This afternoon, I removed the heat sink and replaced the thermal compound on my MacBook Pro (Retina, 15-inch, Late 2013), and in the course of doing so, I managed to break away from the logic board the metal thread housing that 2 of the heat sink screws screw into (not sure if that's exactly the right terminology for it). The below pic illustrates which screws are affected: Basically when I went to unscrew these 2 screws, rather than the screws unscrewing cleanly from the threaded metal casing attached to the logic board, those metal casings broke away from the logic board entirely, with the screws still screwed inside. The issue now is how to reattach them to the logic board - at the moment it's as if those screws aren't there at all, because they're not screwing into anything anchored to the logic board any more. I need to find a way of re-attaching the bottom of those metal screw casings to the logic board, so those screws are applying force to the heatsink again. What is gonna be the best way to do that? Is there a type of glue that would suffice, or is it a soldering job?