Finding odd head screw

[alexit]

I am working with a PCB assembly that is using unusual fasteners. These are #0 Phillips drive M3x0.5 thread - 5mm thread length but with head flat on both sides not PAN, CHEESE, TRUSS or anything I find, also very low profile. Looks like a 90° flat head but with the 90° gone. Also has blue patch for self-locking...

More information:
Head OD = 5.25mm
Head Ht = 0.8mm
OAL = 5.8mm
Phillips size 2.4mm cross, 0.8mm wide, ~1mm deep

I've googled to no avail. Any ideas where to buy 100-3000?

Thanks,
Alex

 

[tomwalz]

I think I might. Do you have a drawing?

tom

Thomas J. Walz
Carbide Processors, Inc.

http://www.carbideprocessor.com

 

[alexit]

What format would you like the drawing as? I have PDF but cannot post this here...

Thanks,
Alex

 

[MikeHalloran]

Consider having it made as a custom part. You'll probably need to buy 10,000 or so, which sounds like a lot, but ...

... custom screws get really cheap when you buy enough to keep the machinery up to speed for a little while.

... ten thousand of those screws won't fill a coffee can.




Mike Halloran
NOT speaking for
DeAngelo Marine Exhaust Inc.
Ft. Lauderdale, FL, USA

 

[Screwman]

Those dimensions look a lot like many of the special design screws that are used in various electronics applications. You will have a very difficult time finding those types of parts available off the shelf ar they are virtually all made to a customer print. The head dimensions and other tolerances are designed specifically for the application at hand.
I second the idea of drawing up a print and having them made up. My best guess is that the lot charge for 3,000 pieces would be about $1,000. Maybe less if they are carbon steel without heat treat

Dick