it almost as if they didnt push the ball joint all the way in, hence the bolt couldnt grab it, or the bolts were too small diameter.
Also, didnt some years of focus have different ball joints maybe they used the wrong part.
May 2014 ROTM, June 2015 ROTM
for auto-x: '04 Liquid Grey ZX3
for street: '02 Infrared SVT