...but DON'T overtighten them as they will shear off, leaving you with a big problem. Get them only finger tight, and then give a slight locking twist (less than 1/16th of a turn) to lock the screw fast. I use Loctite on these as standard.

PS It's not only that a sheared screw shank in the case which leaves you with a problem, but there are also very few remaining replacements available in the event you manage to get it successfully repaired - you have been warned.