Just use it very sparingly and it should work fine. 222 is about the weakest version and 242 is just a bit stronger. Use less of it by putting a drop on the screw and then use a tissue to blot most of it off. If you need to undo the screw later, you might need to heat the screwdriver tip to heat the screw to free it up. Aster says to use the 222 version but I could not find any so I built my Aster Mikes using 242 and blotting most of it away before inserting the screw and have had no trouble (YET!) undoing any screw... not even had to add heat to undo them, but sometimes I have had to apply a strong rotational pressure for a long time to get the screw to turn... just being very careful to not apply so much pressure to break the brass bolt/screw.