Take regular brown and tap in with the head on a nail. Otherwise, I know I've had gray plugs that started with a fast tube and then split very well, but I couldn't find them in the store last time I looked.
I bought an IKEA curtain solution where you hang the curtains on a wire. The problem is that the curtains are quite heavy compared to "regular" ones, which causes the wire to bend. Initially, everything was fine, the curtains hung straight. But what happened after a few days was that the wall fittings started to come loose and bend inward.MathiasS said:
Right now I have used 40mm plugs and the holes I drilled are 6mm.
I can't use lightweight concrete screws because there are already holes in the wall.
Should I press in brown plugs, meaning 8mm (?), into a 6mm hole, I don't quite understand.
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In crumbly lightweight concrete, I can suggest using the plug used in nail plugs, it's for 8mm drills and around 100mm deep. If this doesn't work, no plug will work in the hole. In your case, you might need to slightly enlarge the hole, but if you've already drilled with 6mm and it's starting to give, you'll probably need a thicker plug for it to hold.
Another option is to thoroughly clean out the hole and then insert a new plug with something like plastic padding elastic or similar, then you might be able to get a grip in the existing hole with a bit of luck.
Another option is to thoroughly clean out the hole and then insert a new plug with something like plastic padding elastic or similar, then you might be able to get a grip in the existing hole with a bit of luck.
If you try to make sure that the brown plug is not too large (the screw expands the plug), I mean that it's fine to push such large plugs into the wall. But of course, you should drill a hole for them. Note that it's always important to drill a sufficiently deep hole.