Size of screws required to hang 8kg mirror

grumbler

Are we not talking about "red brick wall" here?

stuart45

grumbler said:

Are we not talking about "red brick wall" here?

Did start as red bricks, although they could be anything from Accrington Nori's to Red rubbers.

twopenny

Most excellent thread. Thank you.

I've got some heavy stuff to hang on plasterboard and I'm not convinced judging by the rest of the finish in the house, that it will be the thick stuff and I was getting despondent.

Now I have a selection of things to try

Olistanding

stuart45 said:

grumbler said:

Are we not talking about "red brick wall" here?

Did start as red bricks, although they could be anything from Accrington Nori's to Red rubbers.

Was talking about red brick, no idea what sort.
Sounds like a z bar would be a good idea

crazyvish

I am in a similar situation. I bought one of those starburst round mirror which is 90cm and just over 10Kg. On the back, the centre of the mirror seems to be covered with a 2mm plyboard while the outer circle (10cm in wide) is made with thick wood. All it came is with one hook which feels strong and sturdy. This is placed closer to the edge of the mirror. Please see the picture below. 


I need to hang this against a brick which has a 10mm plasterboard over it. . I don't think I could use a Z bar on this due to its make and the shape. I was wondering whether I could use this one from amazon?
https://www.amazon.co.uk/SLOTTED-SQUARE-HOOKS-80mm-HANGERS/dp/B00PW4MA6Q/ref=sr_1_1?dchild=1&keywords=SLOTTED+SQUARE+HOOKS+80mm&qid=1607602507&s=diy&sr=1-1

If that is not the right one, could anyone please point me in the right direction? I am looking for either a screw where the head is flat at the rear or a L hook with a short protection so it is not visible at the top.

grumbler

I don't understand the picture. What's under the masking tape? If it came with a hook, why do you need another one? 

crazyvish

grumbler said:

I don't understand the picture. What's under the masking tape? 

Sorry about the earlier picture, here it is.

If it came with a hook, why do you need another one? 

Sorry, it came with a ring and I need something on the wall to hang it to.

grumbler

IMO the hook from Amazon is fine, although a little bit too long yet with short thread. Personally, for a neater result I'd be tempted to try screwing it directly to the brick, into 5mm hole without a wall plug. You can try this - if you get into a brick, not mortar. If this fails, use a bigger drill bit  and make sure that the whole plug sits in the brick wall, not in the plasterboard.

For round-head screws see

https://www.screwfix.com/c/screws-nails-fixings/woodscrews/cat840066?headtype=round_head

crazyvish

For round-head screws see

https://www.screwfix.com/c/screws-nails-fixings/woodscrews/cat840066?headtype=round_head

This link is taking me to woodscrews, are you saying I use these screws without any wall plugs? I hope the 12Kg mirror doesn't let the screw slip from the wall!

grumbler

No. For the screws I didn't suggest that, but you can try. I've done this many times. The problem is that typically you use 4mm or 5mm drill bit and then try different screws. For 4mm hole it can be 4.5mm screw or 5mm, depending on the quality of the brick and the hole.

Beware of the imperial sizes, e.g. 10 x 2" - 2" is the length, the diameter is 5mm - see the specs.

There are special masonry screws, e.g.

(you'll need a TX screwdriver bit for it and may struggle to screw it in with a normal screwdriver)