No pentalobe screws that they own the patent to and use to prohibit third parties from making screwdrivers for.
https://www.ifixit.com/Store/Tools/P2-Pentalobe-Screwdriver-...
Also - it might be nice if Apple allowed competitors to manufacture pentalobe screwdrivers themselves.
And maybe check Amazon before saying Apple is preventing third party screwdrivers. There are hundreds there.
Do I think that Apple shouldn't use some proprietary thermal paste to mount their heatsinks? I don't really care and I don't think anyone here does either - but the tools to get general access to the device body are a different matter... they're necessary for a wide range of relatively simple repair operations.