If I get the sleeve flush to the front of the plasterboard the sleeve won't
be deep enough into the wall to be into the breezeblock, this would be the
problem. These are also the largest bolts I found (length wise).

I now have one bolt in the wall as described in my earlier post. Is there
anything I could use to fill the gap whilst still using the bolt as secured?

"Tim Mitchell" wrote in message
news
In article , Gary
writes
The TV is a plasma (35kg), and I'm recessing the bolt into the hole. The
bolt is 135mm so I drill a hole 125mm deep, the sleeve sits way back in
the
hole and the actual bolt then petrudes the full 135mm from the back of
the
hole giving approx 10mm I can attach the nut to. Is this correct.

No, the front end of the sleeve should be flush with the wall, you
should drill the hole to the depth of the sleeve only (plus a little
bit). When you tighten it up, the bolt will pull out of the sleeve
(opening it up and fixing it) so you'll end up with a lot more bolt
sticking out. If the protruding bolt is a problem, cut it off with an
angle grinder after fixing.
--
Tim Mitchell