How I made this?
No lattices, no proportional editing, very little tweak indeed!
This comes from a question by GreyBeard on Q&A 
Stefano
im guessing you used dupverts and rotated the object along a path
edit:
hehe, i was right(i just found the other post)
You plucked it from that fine moustache of yours?
Iāve never been able to make curly things :-?
Did you use the screw function?
I made this with it just now.
It would need some minor editing to bend it like yours is but thatās easy. The wire itself is done 
dupFRAMES 
Nope, it is born bent, it has not been bent afterwards
Stefano
How about creating 3d path, twisting it around axis as it goes on (as many rounds as there are ātreadsā) then dubliframe using tube as seed?
(I donāt know if it is even possible ;))
edit eh, I was way too late
You have created a path or a curve (what you edit/extrude so long as you have the form u want) and also a besier or nurb circle, what you have use as BevObj by the path/curveā¦ after you are ready it is easy to convert it to mesh (the resol could you in edit mode control - and so you can have low or high poli mesh)
(Sorry for bad english I hope u understand what I meanā¦)
how do you do the screw function? it says i need to have a curve slelected? anybody have any tuts?
BevObj is not an answer, unless you plan to go crazy at tilting (TKEY) it to get a spiral 
If you have looked at the guideā¦ you have an example! Try it
Stefano
DidnĀ“t know the tile tool (TKEY). I kinda screws (turns) curve points around their local axis, right?
Rangel
Skeletor, I have a little trick for using the screw function,ā¦this is how I get it to work:
front view>>add circle
duplicate a vertice, and place it slightly above the circle
extrude it so it goes through your circle and out the bottom with a bit extra on each end.
put your 3D cursor a bit to the right of your circle where you want the middle of your spring to be
still in edit mode, with all verts selected, press screw a few times.
select a vertice from the non-spring portion, and click ctrl L, then X to delete. Thatās it.
Ooo, nice way, one question though, why wouldnāt it do without the 2 vertices that create a line through circle?
That open line or lines tell how much there is space between each rounds in āscrewā.
Modron! by far the coolest thing Iāve learned today Thanks man.