Need some help with my hyper! I am rebuilding the centre diff ( to put oil in ) from my new kit, and two of the screws have been rounded out, ffs stupid red loctite [:@] Does anyone have tips on how i could remove these screws! I need help

I have got some spare screws for, but before i drill out these screws is there any less barbaric way of doing it?
thnx,
ps: i have the uk spider diff version :P