Source of multi-start ACME or Metric Trapezoidal Leadscrew and Anti Backlash Nuts

[MikeyC38]

hi mikey
try here http://www.worldofcnc.com/main.asp?category=Trapezoidal
or here http://www.ondrives.com/linear-leadscrews-nuts.html

Thanks Jonm. Marchant Dice is still the cheapest in the UK but don't supply multi-start delrin anti-backliash nuts -:(