Close
(0) items
You have no items in your shopping cart.
All Categories
    Filters
    Preferences
    Search

    Adjustable-Torque Thumb Screws

    Adjustable-Torque Thumb Screws

    Handles, Knobs & Screw Clamps

    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob de-clutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot and a Knurled Check Nut.

    Available in body-thread sizes from #10-32 to 5/8-11 (M5 to M16 in metric), each in a choice of several lengths. Due to their small size, #10 and M5 thumb screws have a dog point instead of a swivel foot. Made in the USA.

    Application Information

    carr lane adjustable torque thumb screws application information

    Adjustment

    To set desired force, first remove the outer cover screw at the side of the knob, to expose the adjustment screw. Next, insert a hex wrench to turn the adjustment screw until desired torque is achieved. Reinstall the outer cover screw when finished. Torque can be adjusted from 3 to 6 inch-lbs, resulting in a contact force of 10 to 125 lbs, but these values are approximate. Force can vary +/- 30% depending on lubrication and other operating conditions.

    Swivel Foot

    carr lane adjustable torque thumb screw swivel foot

    Choice of three swivel-foot types. Adjustable-Torque Thumb Screws use our patented left-hand-thread swivel-foot system. The ball end of the body screws into the foot for easy installation and removal. Once the ball threads pass beyond the foot threads, the foot can rotate and pivot freely (20° total angle). Foot threads are left-hand to positively prevent accidental backout during use. Delrin® feet are optional for types A and B. To order with a Delrin® foot, add "N" to the part number, e.g. CL-415-TSAN. Note: Delrin® feet are not threaded – they snap on and off.

    Material

    Screw body > 12L14 steel, carburized-hardened, black oxide finish. Knob, check nut, and steel foot > 12L14 steel, black oxide finish. Spring > 17-7PH stainless or music wire. Delrin® foot > White Delrin® 500. DFARS and RoHS compliant.

    ADJUSTABLE-TORQUE THUMB SCREWS

     

    Add "N" to part number for Delrin foot, e.g. CL-415-TSAN (types A and B only).



    INCH
    PART NO. A B C D
    DIA
    DOG POINT TYPE A
    SMALL
    FOOT
    TYPE B
    LARGE
    FOOT
    TYPE D
    BALL
    FOOT
    CL-312-TS #10-24 1-1/4 21/32 15/16
    CL-312A-TS #10-32 1-1/4
    CL-415-TSA CL-415-TSB CL-415-TSD 1/4-20 1-1/2
    CL-425-TSA CL-425-TSB CL-425-TSD 2-1/2
    CL-517-TSA CL-517-TSB CL-517-TSD 5/16-18 1-3/4
    CL-527-TSA CL-527-TSB CL-527-TSD 2-3/4
    CL-620-TSA CL-620-TSB CL-620-TSD 3/8-16 2 21/32 1-3/16
    CL-630-TSA CL-630-TSB CL-630-TSD 3
    CL-820-TSA CL-820-TSB CL-820-TSD 1/2-13 2
    CL-830-TSA CL-830-TSB CL-830-TSD 3
    CL-1020-TSA CL-1020-TSB CL-1020-TSD 5/8-11 2
    CL-1030-TSA CL-1030-TSB CL-1030-TSD 3


    METRIC
    PART NO. A B C D
    DIA
    DOG POINT TYPE A
    SMALL
    FOOT
    TYPE B
    LARGE
    FOOT
    TYPE D
    BALL
    FOOT
    CLM-5-TS M5 1.18 21/32 15/16
    CLM-6-TSA CLM-6-TSB CLM-6-TSD M6 2.53
    CLM-8-TSA CLM-8-TSB CLM-8-TSD M8 2.71
    CLM-10-TSA CLM-10-TSB CLM-10-TSD M10 2.90 21/32 1-3/16
    CLM-12-TSA CLM-12-TSB CLM-12-TSD M12 2.89
    CLM-16-TSA CLM-16-TSB CLM-16-TSD M16 2.88


    See Features page for adjustment range.

    Carr Lane Manufacturing Co.
    View as Grid List
    Sort by
    Display per page

    ADJUSTABLE-TORQUE THUMB SCREW CL-312A-TS

    SKU: CL-312A-TS
    MPN: CL-312A-TS
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW CL-312-TS

    SKU: CL-312-TS
    MPN: CL-312-TS
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW CL-425-TSA

    SKU: CL-425-TSA
    MPN: CL-425-TSA
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW CL-CLM-5-TS

    SKU: CL-CLM-5-TS
    MPN: CLM-5-TS
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW SWIVEL FOOT SCREWS ON/OFF (LEFTHAND THREAD) CL-1020-TSA

    SKU: CL-1020-TSA
    MPN: CL-1020-TSA
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW SWIVEL FOOT SCREWS ON/OFF (LEFTHAND THREAD) CL-1020-TSB

    SKU: CL-1020-TSB
    MPN: CL-1020-TSB
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW SWIVEL FOOT SCREWS ON/OFF (LEFTHAND THREAD) CL-1020-TSD

    SKU: CL-1020-TSD
    MPN: CL-1020-TSD
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW SWIVEL FOOT SCREWS ON/OFF (LEFTHAND THREAD) CL-1030-TSA

    SKU: CL-1030-TSA
    MPN: CL-1030-TSA
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    ADJUSTABLE-TORQUE THUMB SCREW SWIVEL FOOT SCREWS ON/OFF (LEFTHAND THREAD) CL-1030-TSB

    SKU: CL-1030-TSB
    MPN: CL-1030-TSB
    Email Sales for Pricing
    Knurled-head thumb screw that exerts positive, repeatable force. Clockwise, the knob declutches and turns freely when you reach the desired torque. Counterclockwise, the knob locks for positive retraction. Adjustable-Torque Thumb Screws are furnished with your choice of swivel foot, and a Knurled Check Nut. Made in USA.

    Adjustable-Torque Thumb Screws