actually, if it is the same screw i am thinkn of, it is magnatized. now, i am not really sure what for, but if you stick the T-bracket up to it, the bracket will 'cling' to it. i think it might have something to do with keeping it stuck to the bracket once it is on the wall.. so it doesnt rattle off during loud volumes.. either way, i got mine mounted easy also. once you find the wall stud, it goes pretty quick. i would also suggest using the expandable dry-wall plastic sleeve screws for the outside holes of the T-bracket. those QS8's are heavy and need all the support they can get.
bigjohn
