Planning Supplier for black M3 and M5 buttonhead and cap machine screws

I've been banging my head for a day or so trying to find a supplier for black machine screws in M3 and M5 dimensions (preferably also black nuts). When looking at RC and computer stores every possible colour is available, but only in M4 and smaller. If I look at MC stores there's only aluminium. If I look at British or American sites there's a very limited supply of metric dimensions.
I've had some luck on eBay, but wanted to ask if someone knows of any other website that sells such a thing.

 

I can recommend this german supplier:

http://www.screwsandmore.de/index.php?cPath=2277

12€ shipping to sweden though...

 

Thank for the link. Unfortunately they only have M2 to M4. A pity as they are the only one that I've seen that stocks black nuts and washers...
I found http://www.blacksocketcaps.com/, who have the sizes I need. But they don't stock black nuts.
Any other stores that are recommended?

 

How about these?

http://en.mdpc-x.com/mdpc-mounting/screws.htm

 

I've mailed them, and they sadly don't stock M4 yet.

 

Try This

 

Thank you very much! They have precisely what I need.

 

Glad to help