Hi Beatlejohn,
after a quick search of google, it appears that is correct.
hex = locking screws
phillips = push pull adjusting screws.
I use astro-baby's guide to collimation for best all round results.
http://www.astro-baby.com/collimatio...on%20guide.htm
I think 5ASH may be referring to the possibility of the laser collimator being out of alignment itself , which has happened with some.
set it up somewhere you can rotate it to see if the dot stays centered when rotated.
Good Luck,
feel free to come back with more questions.