adjustment screw, differential, 0.5" travel, 100TPI
Product Attachments

Siskiyou TPI series differential screws are ideal for OEM and custom applications. With 0.5" of lockable coarse travel and 0.030" of fine travel, they provide the longest fine travel available. Superior thread surfaces provide essentially zero backlash in critical applications. They feature our single-wrench-size adjustment for capstan and hex drives and locking screw. The unique collet design incorporates a split-clamp mechanism used to preset adjustment screw tension, as well as locking screw movement. If the location of the locking screw is not ideal, it can be backed out and inserted from the opposite side.

Product Features

  • 100 thread pitch
  • Fits 3/8-inch collet diameter products
  • Split-clamp lock
  • Hex drive actuators
  • Vacuum compatible versions available
  • RoHS compliant→

Performance Specifications


  • Travel Range: 0.5 inch (12mm)
  • Resolution: 254μm/rev
  • Min. controllable motion*: 0.7μm
  • Differential

  • Travel Range: 0.030 inch (0.8mm)
  • Resolution: 20μm/rev
  • Min. controllable motion*: 0.05μm
  • Axial load: 70 lbs
    • *Minimum controllable motion BASED ON 1° OF ROTATION

More Information
Travel 12mm/.50in

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