thermailte block fixings

[lewy]

Trying to secure a double socket back box to a thermailte block and normal rawl plugs and screws can't secure it, the screws keep turning.

Is there a better fixing?

I thought about maybe drilling a bigger hole, say 2" then fill it with polyfilla then fix to this

 

[kevplumb]

6mm 0r 5.5 drill and tap brown plugs in

 

[jbonding]

use some bonding plaster, cement or bonding compound(used for dabbing plasterboards) and bed the back box on the block flush with the existing wall and let it set, jobs a good en

 

[Thermo]

if rawlplugs wont do it use the old fashioned method of a wedge of timber hammered into the hole. Screw into it and it wont move.

 

[petewood]

Kevplumb's method has always worked for me, but I'm sure that screwfix do some special fixings for thermalite.

 

[chappers]

should be able to fix to thermalite fine 3" x 10 screws should go in fine even without plugs

 

[mrmark]

Just bang a few screws in it. Get a bigger size if they keep turning. Once you get some plaster round it, it won't move.

 

[masona]

if rawlplugs wont do it use the old fashioned method of a wedge of timber hammered into the hole. Screw into it and it wont move.

Have you tried this method yet?

 

[Thermo]

masona if youre asking me then yes, small wedge shaped offcut of timber knocked into the hole works for me

 

[Thermo]

once its held in place and all levelled up then i use some quick set filler around it or mortar if im leaving it overnight.

 

[masona]

masona if youre asking me then yes, small wedge shaped offcut of timber knocked into the hole works for me

No sorry, I was putting the question to lewy

 

[Thermo]

i did think that strange, you asking me that!

 

[lewy]

all fixed ok now,, i went into screwfix and they had some ''lightweight block anchors'' that you just hammer in then screw into that. They worked a treat. Thanks for all the replys