Place to Purchase Lead Screws

[ferrari77]

Hey guys

I'm working on a project involving a 3-D printer and stepper motors and I needed to purchase a lead screw
I have searched long and hard online for places to purchase and have had no luck

These are the specs that I know I need

· -Acme Lead Screw Tr8x8(P2)
· -Major Diameter is 8 mm or 5/16”
· -Lead is 8 mm
· -Tr = Trapezoidal
· -Pitch 2mm
· -Flange nut for mounting (any type, anti-backlash, sufficient, etc)
· At least 20 in long

If anyone has any suggestions to look for that would be awesome.
I have tried mcmaster, sdp-si, enco, mscdirect, and amazon
I have found it on robotdigg but it is based in China and I need the lead screw soon

Thanks for your help