Adjustment Screws & Micrometers

Precision adjustment screws and Micrometer drives provide simple, reliable motion control at a low cost. Siskiyou offers high-quality adjustment screws from 20TPI to 170TPI, and micrometer drives designed to fit linear translation stages with a 3/8" actuator bore. Differential screws can provide the most precise motion in our lineup, 20µm per revolution.

If you can't find what you're looking for below, contact us, and we'll be happy to help find a product that will work, or we will design a custom solution that perfectly suits your application.

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  • TPI Series Adjustment Screw TPI Series Adjustment Screw
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    TPI Series Adjustment Screw

    Siskiyou hex drive or SoftTouch TPI series adjustment screws are ideal for OEM and custom applications. They feature our single-wrench-size adjustment for capstan and hex drives and locking screw. The unique collet design incorporates a split-clamp...
    $34.00 - $95.00
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  • SM Series Micrometer SM Series Micrometer
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    SM Series Micrometer

    Siskiyou SM series micrometers use our 100 TPI (threads-per-inch) adjustment screws for submicron resolution. They are designed to fit 0.25" diameter shaft mounts, and are available in 0.5" and 1.0" travel versions, with 0.01" travel per revolution...
    $145.00 - $165.00
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  • #8-TPI Series Adjustment Screw
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    #8-TPI Series Adjustment Screw

    Siskiyou's 1/4-inch collet hex drive or SoftTouchª 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...
    $30.00 - $32.00
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  • TPI-LT Series Screw TPI-LT Series Screw
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    TPI-LT Series Screw

    Our Lt series of long travel adjustment screws incorporate a magnet stop-block (pat.pend.). As shown in Figure 1 above, where the stage is located against the magnetically coupled adjustment screw, the stage can be adjusted just like on a standard...
    $150.00
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  • FAM Series Micrometer FAM Series Micrometer
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    FAM Series Micrometer

    Siskiyou FAM series micrometers use the same 100 TPI adjustment screws as the SM series. The large diameter adjustment knob improves leverage and resolution, even with loads up to 100 pounds. The larger barrel allows laser marks every 0.0002" / 5 microns...
    $85.00 - $215.00
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  • 100TPI-0.5d 100TPI-0.5d
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    100TPI-0.5d

    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...
    $95.00
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  • SDM Series Micrometer SDM Series Micrometer
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    SDM Series Micrometer

    The SDM differential version uses a combination of our precision adjusters to provide 0.020" / 500 microns of fine adjustment, with a precision of 20 microns per turn. The tip of the adjustment screw has been machined to accept a hard ball bearing (64...
    $300.00 - $400.00
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  • FDM-1 FDM-1
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    FDM-1

    FDM differential versions use a combination of our precision adjusters to provide 0.030" / 762 microns of fine adjustment, with the precision of 20 microns per turn. A large diameter coarse adjustment knob provides the leverage and resolution necessary...
    $550.00
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  • 4-100 Series Adjustment Screw
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    4-100 Series Adjustment Screw

    For precise adjustments in tight spaces, Siskiyou announces new #4-100 adjustment screws. They are supplied with a brass mounting body for ease of installation - just drill a 3/16" hole. Precision threads provide smooth adjustment, and the maximum thread...
    $30.00
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