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zeurydice OP t1_ixd2zta wrote

Reply to comment by bobbertmiller in How to mount something safely on a wall of unknown material? by zeurydice

These are really cool. We of course have plastic wall anchors here, but I've never seen a fancy multi-use anchor like this. I'm wary about how much weight it would hold, though, especially since the Amazon listing doesn't seem to claim anything in that regard.

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calcium t1_ixd8zu7 wrote

I did some digging on the manufacturers website and for their metric products I found the following PDF that calls out their strength in kN of holding for various surfaces:

https://fiproductmedia.azureedge.net/media/Load%20Tables/Load%20Tables%20fischer/LT_01_DUOPOWER_SEN_AIP_V1.pdf

A quarter inch is 6.35mm, so if you’re using say a 6x30 in gypsum fiberboard it would have a holding of 0.33kN or about 75lbs, which is generally what you’d expect from a plastic toggle.

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Samothrace_ t1_ixdb0zl wrote

There are tons of options at At Home Depot or Lowes. They usually have the maximum sheer load displayed on the packaging.

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taizzle71 t1_ixdo2ui wrote

I used to Install tvs on walls and use these masonry anchors all the time. Actually it comes with the tv mount. Not sure of the exact strength of these but after screwing in 4 we can hang on it no problem.

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bobbertmiller t1_ixdkbuj wrote

I was just linking the German stuff because I didn't know what's common where you live. I really like Fischer and have used them exclusively now (and they are easy to come by, me being in Germany).

/u/calcium has linked the chart already, but for gyspum board you're basically limited by the material. I'd use a 6x30 or 6x50 for a single sheet. I prefer more holes to bigger ones in Gypsum, because you need to spread the load.

If you have a solid wall, even a shitty porous one (had old, loose, sandstone once) you want a long dowel so the load is as far INSIDE the material as possible. That way, you won't blow out the surface. Sometimes you have to lock the dowel in position, so it doesn't rotate before it starts expanding.

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Z-W-A-N-D t1_ixdxhl7 wrote

I am currently using identical anchors of 8mm for a wall TV mount. I'm a furniture/cabinet maker and I have also worked as a carpenters helper for a long time. I usually test stuff like this so I just hung on the extended arm for a bit. Didn't move a bit. Used 3 of those plugs. They're great. I used them in a brick wall btw.

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Z-W-A-N-D t1_ixdzreq wrote

Also, I have these in 10mm diameter, I think they're 45mm long and they hold 215kg in concrete, 145 in brick, 25kg in hollow bricks, 20kg in bubble concrete and 15kg in gypsum boards.

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