One of two screws holding my sink in place has gone loose

[Yukster]

My bathroom sink is attached to the brick wall by two screws. One of the crews' rawlplug has come loose after I took the sink on and off several times. I consequently can't fasten the but onto that screw properly anymore

How can i fix this? Does it make sense to fill the hole with concrete, re-insert the rawlplug and screw into the rawlplug when the concrete has dried? Will that be a strong enough repair? If not, what should I do?

PS
I'd rather not drill another hole because that will force me to move the sink and that not going to be easy

 

[foxhole]

Hammer in timber wedge and fix to that.

 

[Yukster]

Hammer in timber wedge and fix to that.

That makes sense. Thanks

 

[LooPrEvil]

Wrapping tape around a new rawlplug to give a tight fit also works. Dont wrap it too tightly as you still want the plug to expand as you screw into it.

 

[Alarm]

Clean out the hole, make sure its dry as well.
Use some chem fix and then hand screw in some threaded rod.
Wait 15 mins and put a washer and nut on and tighten.
Its never going to come loose after that.

 

[Yukster]

Clean out the hole, make sure its dry as well.
Use some chem fix and then hand screw in some threaded rod.
Wait 15 mins and put a washer and nut on and tighten.
Its never going to come loose after that.

Thanks. What do you mean by 'chem fix'?

 

[Alarm]

It comes in a tube. A goo of chemical fixing. That sets and grips rather well.

http://www.screwfix.com/p/r-kea-epoxy-acrylate-resin/24841

 

[Yukster]

It comes in a tube. A goo of chemical fixing. That sets and grips rather well.

http://www.screwfix.com/p/r-kea-epoxy-acrylate-resin/24841[/QUOTE]Cheers. btw, I'm currently using the screw that came with the sink from Crosswater. It's part screw part threaded rod. I need to get a slightly longer one (now that I dry-walled with Marmox boards). What are these called? Can I replace it with a longer bit of threaded rod? and if so, are there different types of rods (made of different materials?)

 

[Alarm]

Stainless steel rod would be the best, but galv will do.
Comes in all sizes ( M6 M8 M10 M12 ect) just buy the length you need.
And the nuts and washers of course.