New thread sizes

The new dryspin® preload lead screw nut

For thread with diameter size 6.35

The new pre-load lead screw nut convinces with minimal axial clearance and highest positioning accuracy. It is the cost-effective alternative to the zero backlash and ideally suited for small pitches. This is the proven pre-load principle from SHT-PL. Typical applications include 3D printers.

The pre-load lead screw nuts are available in three different thread sizes:

Reduce time spent on design and optimise the procurement process for your lead screw technology.

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Thread size

Tech up

  • New dimension range for 6.35mm diameter​ with patented dryspin® lead screw technology
  • Consistent minimum axial clearance for high positioning accuracy​
  • Proven preload principle from SHT-PL​
  • Ideally suited for 3D printing

Thread size

Cost down

  • 100% lubrication-free and maintenance-free
  • No maintenance work due to self-adjusting axial clearance from both sides
  • More cost effective compared to zero-backlash lead screw nut due to fewer components

Thread size


  • Less axial clearance due to lead screw nut spring pre-load

Thread size


  • No grease or oil in the lead screw drive
  • Long-lasting use due to patented asymmetry
  • igus® supports the circular economy of plastics and is investing in chemical recycling. Find out more at:

The dimensions of the new dryspin® pre-load lead screw nut at a glance

Further important information:

Higher efficiency, longer service life

This is what dryspin® technology can do

The dryspin high helix thread technology was developed by igus in 2013 and offers numerous advantages compared to conventional high helix threads. Due to the flat thread angle, it efficiently converts the force introduced into a translational movement. With specifications and geometries matched to the plastic nut and spindles, dryspin provides an even longer service life and more efficiency for high helix threads. Due to the rounded tooth geometry, the contact area between lead screw and nut is reduced, and the lead systems operate quietly and without vibration under load.
The larger spaces between the individual dryspin threads result in a higher proportion (factor 1.3) of tribologically optimised polymer in the threads. More wear-resistant material and higher levels of efficiency are crucial for a service life that is up to five times longer compared to conventional high helix threads.

Find out more here

Try out dryspin® technology for yourself

With the help of the free lead screw sample

Holding a real sample in your hands is an important part of understanding your component. We will be happy to send you a sample of our dryspin lead screw drives for this purpose. We have summarised all the specifications and advantages of dryspin lead screw technology in the sample for you. See for yourself and if you have any questions, our experts will be very happy to help.

Request free lead screw sample here

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