TMH Wrote in message:
On 22/01/2019 14:19, Jim K.. wrote:
charles Wrote in message:
In article ,
Jeff Layman wrote:
I am replacing some old wall lights with some new Där fittings. I was
somewhat surprised to see that the wallplugs and screws supplied were of
different lengths. The wallplugs were 25mm x 5mm, and the screws 35mm x
3.5mm. The diameters match well, but why would you use a 35mm screw with
a 25mm wallplug?

It's because the people who design stuff have never fixed anything to a
wall in their lives & have no idea how to do so.

Rule number 1.

Unpack item, remove screws/plugs, throw in bin.

+1

Rule #2
Use plugs & screws of appropriate size, including being long
enough to reach the supporting substrate behind "render",
"plaster", "whatever". If necessary use more than one plug "in
series".

--
Jim K


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