Not quite sure what you mean Dwayne. What type of wire (steel, copper, brass etc) and what type of head?
If you mean a pin style flat head it might be worth having a look at lace pins, such as those found here.
Supplying lacemakers and tatters around the world
www.roseground.com
You might find what you need, and it will be far easier to flatten the brass head with a file than put a flat head on a blank piece of wire.
If you do want a flat head on a wire, the only way I can think of is with a ball pein hammer and a vice. Hold the wire in the vice and round the end off like a rivet. It will be long winded and potentially inconsistent though.