System of Measurement System of Measurement |
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Barrel Drive Style Barrel Drive Style |
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| Tamper-Resistant Torx | |
Screw Drive Style Screw Drive Style |
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| Tamper-Resistant Torx | |
For Material Thickness For Material Thickness |
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Material Material |
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Head Type Head Type |
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![]() | Rounded |
Rounded Head Style Rounded Head Style |
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Threading Threading |
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| Fully Threaded | |
| Partially Threaded |
Rounded Head Profile Rounded Head Profile |
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Thread Spacing Thread Spacing |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Thumb Screw and Binding Post Materials
More
Tamper-Resistant Torx Binding Barrels and Screws

A tamper-resistant Torx driver is required for installation and removal. Made from 18-8 stainless steel, these binding barrels and screws are chemical resistant and may be mildly magnetic. Barrel length and screw length are measured from under the head.
For technical drawings and 3-D models, click on a part number.
Barrel | Screw | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Material Thick. | Lg. | Dia. | Head Dia. | Head Ht. | Thread Dp. | Drive Size | Lg. | Head Dia. | Head Ht. | Drive Size | Each | |
18-8 Stainless Steel | ||||||||||||
10-24 | ||||||||||||
| 3/8" to 1/2" | 3/8" | 1/4" | 7/16" | 7/64" | 5/16" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 00000 |
| 1/2" to 5/8" | 1/2" | 1/4" | 7/16" | 7/64" | 1/4" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 0000 |
| 5/8" to 3/4" | 5/8" | 1/4" | 7/16" | 7/64" | 1/4" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 0000 |
| 3/4" to 7/8" | 3/4" | 1/4" | 7/16" | 7/64" | 3/8" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 0000 |
| 1" to 1 1/8" | 1" | 1/4" | 7/16" | 7/64" | 3/8" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 0000 |
| 1 1/4" to 1 3/8" | 1 1/4" | 1/4" | 7/16" | 7/64" | 3/8" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 0000 |
| 1 1/2" to 1 5/8" | 1 1/2" | 1/4" | 7/16" | 7/64" | 3/8" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 0000 |
| 2" to 2 1/8" | 2" | 1/4" | 7/16" | 7/64" | 3/8" | T20 | 1/4" | 7/16" | 7/64" | T20 | 000000000 | 0000 |
1/4"-20 | ||||||||||||
| 1/2" to 5/8" | 1/2" | 5/16" | 9/16" | 9/64" | 1/4" | T27 | 1/4" | 9/16" | 9/64" | T27 | 000000000 | 0000 |
| 5/8" to 3/4" | 1/2" | 5/16" | 9/16" | 9/64" | 1/4" | T27 | 1/2" | 9/16" | 9/64" | T27 | 000000000 | 0000 |
| 3/4" to 1" | 3/4" | 5/16" | 9/16" | 9/64" | 3/8" | T27 | 3/8" | 9/16" | 9/64" | T27 | 000000000 | 0000 |
| 7/8" to 1" | 3/4" | 5/16" | 9/16" | 9/64" | 3/8" | T27 | 1/2" | 9/16" | 9/64" | T27 | 000000000 | 00000 |
| 1" to 1 1/4" | 1" | 5/16" | 9/16" | 9/64" | 3/8" | T27 | 3/8" | 9/16" | 9/64" | T27 | 000000000 | 00000 |
| 1 1/4" to 1 1/2" | 1 1/4" | 5/16" | 9/16" | 9/64" | 1/2" | T27 | 3/8" | 9/16" | 9/64" | T27 | 000000000 | 00000 |
| 1 1/2" to 1 5/8" | 1 1/4" | 5/16" | 9/16" | 9/64" | 1/2" | T27 | 1/2" | 9/16" | 9/64" | T27 | 000000000 | 00000 |
































