8mm Metric Lead Screw / ACME


Size: 281mm
Price (Exc. VAT):
Sale price£6.13 GBP


This 8mm Metric Lead Screw / ACME has an accuracy of 0.05-0.10mm or better. Leadscrew machines are designed to be accurate, strong and reliable. Leadscrew transmission requires little ongoing maintenance, with nut-blocks often having a functional life of longer than 3 years if the machine is taken care of.

All of our Leadscrews are ACME thread TR8x8(P2), in basic terms, this means one revolution of the leadscrew will make a nut-block travel four times further than a standard threaded rod which is only a single start.

Furthermore, this precision trapezoidal (metric) lead screws pitch and diameter are a perfect combination of high torque and speed.

8mm Metric Lead Screw / ACME is the standard for the OpenBuilds' style CNC Machines. Equipped with a large diameter that helps eliminate whipping and a high pitch that allows quick moves at 8mm per revolution.  It's a great power transmission choice for your next build.

  • Tr8*8(P2)
  • Lead Screw Diameter ∅ 8 (mm)
  • Pitch 2 (mm)
  • Lead 8 (mm)
  • 4-Start
  • Length: 1570mm, 1070mm, and 281mm
  • Stainless Steel

Use with the V-Slot Nut Plate and Nut Block

Also related parts: 8mm Lock Collar and 8mm Shim


Trapezoidal threads are defined as follows by ISO standards:

  • Tr8x8

Where Tr designates a trapezoidal thread, 8 is the nominal diameter in millimetres, and 8 is the pitch in millimetres. When there is no suffix it is a single start thread. If there is a suffix then the value after the multiplication sign is the lead and the value in the parentheses is the pitch. For example:

  • Tr8x8(P2)

Denotes 4 starts (as the lead divided by the pitch is 4), 8mm diameter, 8mm lead and 2mm pitch.

Modified from:

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