Concrete screw in 6mm that's black?

[xLnT]

Hello,
I am going to mount a lighting fixture on the facade which has three 6mm holes for mounting.
It is made of cast iron and catches some wind, so I would like to anchor it well with the right screw.
The problem is that I can't find lightweight concrete screws with a diameter of max 6mm with a flat head (and preferably they should be black).
Essve's Heavy Load screw is 10mm for example.

Any tips?

(I don't want to use chemical anchors)

 

[Alfredo]

Any tips?

When it comes to the color, maybe a black marker pen will do if it's just a few screws. I think it might be good enough for something located outdoors.

 

[xLnT]

When it comes to color, maybe a black marker will do if it's just a few screws. I think it might be good enough for something that sits outdoors.

Yes, that is the last resort, but I still need to find hot-dip galvanized or stainless steel screws as mentioned above.

 

[Stefan1972]

Now I don't know what the glory looks like, but large fixtures and lightweight concrete seem like problems right away. I would probably make a bracket first that is screwed into the wall and then the fixture into that. A bit of DIY first, in other words. But yes, maybe it's not that big after all?

 

[xLnT]

now I don't know what the splendor looks like, but large fixtures and aerated concrete seem like problems right away. I would probably make a mount first that is screwed into the wall and then the fixture into that. A bit of DIY first, in other words. But yes, maybe it's not that big after all?

I think it should work with the right screws.
The plaster itself is hard.

https://kulturlampan.se/produkt/stallykta-gjutjarn-45-45-cm-djup/

 

[Snickarkirre]

Can't you just buy some regular screws and plug the holes? There isn't exactly a great selection of lightweight concrete screws.

 

[xLnT]

Can't you buy some regular screws and plug the holes? There isn’t exactly a huge selection of aerated concrete screws.

I bought aerated concrete plugs and long installation screws, will have to paint them black.

 

[Mazen]

A bit late, but rännkroksskruv is available in black, among others, but maybe a bit short, 35 mm.
https://bolist.se/produkt/rannkrokskruv-c3-ahlgrens-48x35mm/?article=7340191713642
There is also montageskruv with a black head, 65 mm.
https://bolist.se/produkt/montageskruv-c3-ahlgrens-42x32mm-250-st/

 

[xLnT]

A bit late, but rännkroksskruv is available in black, among others,
But maybe a bit short, 35mm.
[link]
There is also montageskruv with a black head, 65mm.
[link]

Yes, they are a bit short, I took 5.2x110mm C4