Heavy duty fixings.

Ducklakeview · Post by **Ducklakeview** » Fri Mar 30, 2018 12:19 am

Ok,

After 8 years fitting kitchens, I know how to fix something to a wall so it won't fall off..

But, looking for recommendations on heavy duty external brick anchors. I've been disappointed in the past with "sleeve anchors" when fitting out the shop, and I'm looking to fix some heavy security gates to solid brickwork using something with at least a 12mm diameter thread, needs to be able to have the head welded to prevent removal once fixed. Thinking "rawlbolts" but I know there are all sorts of masonry screws and resin systems out there now.

Anyone used anything they'd happily recommend?

Mike

bladeowner · Post by **bladeowner** » Fri Mar 30, 2018 12:37 am

If you do go down the rawlbolt path. I've use security nuts for ground anchors etc like these :
https://www.ebay.co.uk/itm/M6-M8-M10-M1 ... 113rJlwnsA

Silverzedtom · Post by **Silverzedtom** » Fri Mar 30, 2018 1:14 am

I’ve hung air handling units and a/c units off of Fischer drop in fixings. Probably similar to the sleeves you have used where you would drill a hole, and then pop the body in the wall, smash the ‘red head’ with a punch (I use an old taped up sds bit). I’ve only ever used them in m10 but they do make them in m12.

I put a squeeze of everbuild anchor set resin in there these days as it goes off rock solid but never had an issue without.

Z4C_er · Post by **Z4C_er** » Fri Mar 30, 2018 2:50 am

But, as they say, a chain is only as strong as it's weakest link.

I've also seen bricks pulled out of walls because peeps have put too much load on one place on the wall. Perhaps spread the load by bolting a large bearing pad onto the wall.

sticky · Post by **sticky** » Fri Mar 30, 2018 7:22 am

Threaded rod, comes in 1m lengths from 5mm upwards. Resin for fixing, comes in standard silicone type tubes

PaulG · Post by **PaulG** » Fri Mar 30, 2018 7:40 am

Definitely the resin. I have used Screwfix own brand inside and out. Great stuff.

Bombardino · Post by **Bombardino** » Fri Mar 30, 2018 9:22 am

Hilti Hit system, probably an overkill for what you want but will definitely make a secure fixing. I’ve used it in industry for many year, never hand one fail.

https://www.hilti.co.uk/anchor-fixings/ ... s/r3360273

john-e89 · Post by **john-e89** » Fri Mar 30, 2018 9:36 am

Z4C_er wrote: ↑Fri Mar 30, 2018 2:50 am But, as they say, a chain is only as strong as it's weakest link.

I've also seen bricks pulled out of walls because peeps have put too much load on one place on the wall. Perhaps spread the load by bolting a large bearing pad onto the wall.

This....along with using one of the resin anchors mentioned.

MrPT · Post by **MrPT** » Fri Mar 30, 2018 9:50 am

Use the small amounts of dried porridge that survive your dishwasher. Strongest substance known to man.

Ducklakeview · Post by **Ducklakeview** » Sun Apr 01, 2018 8:47 pm

Ok, so in the end I went for Fischer styrene free resin, along with threaded stainless bar in M10 and M12. I used flanged stainless nuts which will have their heads welded to the fixing plates tomorrow.

Never used the stuff before, but OMG, I'll never use rawlbolts again, this stuff is fantastic, and goes off VERY fast..

Mike

mjennings23 · Post by **mjennings23** » Fri Apr 13, 2018 12:12 pm

Resin is insanely strong, working on construction sites it was common to use resin anchored bolts to support formwork shutters, each bolt could have the force of a tonne of liquid concrete on it and wouldn't move an inch

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