Hey Shazz and Chaz,. are you guys lubricating the screw? I don't know whats best but I have a candle in my tool kit and ALWAYS give the threads a good waxing before I screw them in. Might help.
Ahh never thought of that! I know with my 2 screws that I had to change out, he heads stripped so I couldn't actually do much with them. Had to get my husband to get them out.