Wall fixings - what should I be using?

[LaserTam]

Trying to attach a safe to the wall - you know the ones, big enough to get a lunch box into, enough space for small stuff but not the crown jewels.

So, its fairly heavy and I am attaching it to an external wall, which is plaster on breeze block type arrangement. Been to local DIY shop and bought what looked to be the things I needed, metal, with some type of expanding sheaf arrangement, so that when you tighten up on the nut, I guess it expands and holds the bolt in the wall. From the packaging, looked like it was good for brick and breeze block. However, just tried it, and nope, the bolt just keeps on coming out when I tighten down on it.

So, what should I be using? In said shop, I did see these plastic rawl plugs that had a kind of thread on them, is that to thread into the breeze block?

Help please.. Thanks.

[bungle.]

the bolts should work, did you drill the correct size hole?

[LaserTam]

Yep I did, needed a little tap (as per limited instructions) with a hammer to get them in the hole. Perhaps I should try tightening down on them before trying to hand the safe???

[King Herald]

Some older breeze blocks appear to be little stronger than sand in a pile. You may have to revert to some sort of epoxy in the hole.

I have used No More Nails squirted into a couple of holes before, holding a sink up, as the block just kept crumbling away. (Blow all the dust out of the holes first using a drinking straw)

Seeing as it is a safe, you might want to use big fvck off coach bolts, put through from the other side of the wall, or the scallies will just walk off with your safe, having levered it off the wall.

[LaserTam]

The house is only 7 years old, so shouldn't be an age issue. Thanks for the advice though.

[V12Les]

The blocks are very likely to be Durox or Thermalite, use a drill bit one size smaller than recomended.

[R60EST]

If its thermalite or similar ordinary twinthread 4" 10's will go straight in without pre-drilling and they will hold fairly tight . You can put a screw every couple of inch around the perimeter of the safe and drill the pozi heads slightly after fixing so they can't be unscrewed. If the blocks are slightly harder , ordinary concrete block for example, use a 4mm masonary bit to pre drill and screw straight in without plugs , works in bricks too. If you have doubts try either of the above methods in a spare block / brick first to see how well it works

Edited by R60EST on Monday 8th June 19:55

Edited by R60EST on Monday 8th June 19:55

[Deva Link]

LaserTam said:

I did see these plastic rawl plugs that had a kind of thread on them, is that to thread into the breeze block?

There are some like that specifically for breezeblock, but the threaded ones could also be plasterboard.

The blocks could be hollow so you might be drilling through into fresh air.

Are you trying to fix the safe in plcae, or prevent someone from removing it? It occurs to me that if someone wants to remove it then they will, and the more secure the fixing is, the more mess they'll make removing it.

Edited by Deva Link on Tuesday 9th June 09:30

[allegro]

R60EST said:

If its thermalite or similar ordinary twinthread 4" 10's will go straight in without pre-drilling and they will hold fairly tight . You can put a screw every couple of inch around the perimeter of the safe and drill the pozi heads slightly after fixing so they can't be unscrewed. If the blocks are slightly harder , ordinary concrete block for example, use a 4mm masonary bit to pre drill and screw straight in without plugs , works in bricks too. If you have doubts try either of the above methods in a spare block / brick first to see how well it works

Edited by R60EST on Monday 8th June 19:55

Edited by R60EST on Monday 8th June 19:55

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