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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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