setting a shield anchor behind plaster

[Antix]

Hi, ok...so I'm nearly ready to start mounting the plasma mount and I have a few shield anchors to back-up the resin studs I'm going to use.

I've never used a shield anchor but I can see the principal is straight forward, stick it in your pre-drilled hole, tighten it up, and bobs your uncle, the anchor expands and secures the chosen bit of whatever to the wall..the trouble is, I have about 2cm of plaster between the thing I wish to mount to the wall, and the actual brick...and I don't want to waste 2cm of the shield by having the colar of the shield level with the outside of the plaster...I'd obviously rather have the colar of the sheidl level with the brick, so as to maximise the amount of expanding bit within the brickwork...

How do I do this ? Do I search out for some sort of colar type washer that's about 2 cm long to fill the gap between the colar of the shield and the bolt head, or is there a way to fit the anchor all the way into the bric, tighten it part of the way to get the anchor to prime itself first, then do the final tightening after I'm sure it's going to stay put...instead of the action of tightening the bolt simply pulling the whole thing back out until it's level with the outside of the plaster and mated with whatever I'm trying to secure to the wall....anyone following me here !?!

Ant.

[Phil L]

..not really, no....why are you fannying about with these fixings? - they went out with the ark, just drill a 9.5mm hole and use a normal brick bolt, you can get them for about 80p from builders merchants or ironmongers and they simply go directly into the hole, the end of the thread is made of a hardened cutting metal and it cuts a thread into the actual brick, once in they never come out or come loose, you'll need a 15mm spanner to tighten them up, no collars, expanding gadgets, plugs or anything else