Torque Thumb Screws
Torque thumb screws are mechanical clamping components for holding, support and workholding applications. Vlier offers five designs on this page: Regular Type A, Swivel Pad Type, Inverted Type B, Tee Head Type C and Adjustable Type D. All five designs include a checknut to help prevent back-off during operation. Available sizes on this page range from 10–32 through 5/8–11, depending on design, with estimated end force values from 8 to 125 lbf. Product not available in metric.
Specify by:
- Design type (Regular, Swivel Pad, Inverted, Tee Head or Adjustable)
- Thread size (10–32 through 5/8–11, depending on design)
- Estimated end force requirement
- Contact style or pad option (standard, steel swivel pad or Delrin® swivel pad, where listed)
- Overall length and envelope dimensions (A–F per table, depending on design)
- Adjustable torque requirement (3–6 in–lb., Adjustable Type D only)
Click any row to see CAD and additional product information, or to add to quote.
| Part No. | Estimated End Force Lbs. | A | B | C | D | ROHS | CAD |
| T102 | 8-15 | 10-32 | 1-1/4 | 0.47 | 7/8 | T102 | |
| T103 | 9-18 | 1/4-20 | 1-3/4 | 0.47 | 7/8 | T103 | |
| T1031 | 9-18 | 1/4-20 | 2-1/2 | 0.47 | 7/8 | T1031 | |
| T103A | 10-20 | 5/16-18 | 1-3/4 | 0.47 | 7/8 | T103A | |
| T103A1 | 10-20 | 5/16-18 | 2-1/4 | 0.47 | 7/8 | T103A1 | |
| T103B | 10-20 | 5/16-18 | 3 | 0.47 | 7/8 | T103B | |
| T104 | 12-23 | 3/8-16 | 1-3/4 | 0.47 | 7/8 | T104 | |
| T1041 | 12-23 | 3/8-16 | 2-1/4 | 0.47 | 7/8 | T1041 | |
| T105 | 12-23 | 3/8-16 | 3 | 0.47 | 7/8 | T105 |
Conversion Calculators
Enter known value in place of X to view results.
Metric & Inch conversion:
Inch
=
mm
Lbf/Newton Conversion:
lbf
=
N






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