Siskiyou's 1/4-inch collet Hex Drive TPI series adjustment screws are ideal for OEM and custom applications and are miniature versions of our 3/8-inch collet adjustment screws. They feature single-wrench-size adjustment and locking screw hex drives. The brass collet includes a built-in travel-lock mechanism to reliably hold device positioning.
TPI series fine and ultrafine adjustment screws are available with 80 and 100 threads-per-inch pitches, producing industry-leading resolutions — a cost-effective alternative to standard micrometers, where position readout is not a requirement. Adjustment screw contact tips are fitted with a hardened ball bearing for exceptionally smooth adjustment.
- 80 thread pitch
- Fits 1/4-inch collet diameter products
- Integrated travel lock
- Hex drive actuators
- Vacuum compatible versions available
- RoHS compliant→
- Travel 318μm/rev
- Minimum controllable motion* 0.9μm
- Axial load 40lb
*MINIMUM CONTROLLABLE MOTION BASED ON 1° OF ROTATION
|Drive Type||Hex Drive|
|Manual / Motorized||No|