Get a small metal bit and drill right down the center of the screw aways (1/4 in). Then get a screw removal bit…looks like a dull, twisted bit with a tiny square tip. Screw that into the hole you drilled (I think the bit should be turning counterclockwise) and as it goes in the screw comes out. A must have set of bits for any mechanic. There you have it.This is what Mysterious means by "drill and tap"