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Tip Type Tip Type |
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 | Ball |
Thread Direction Thread Direction |
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Drive Style Drive Style |
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Hardness Hardness |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Tip Material Tip Material |
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Threading Threading |
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 | Fully Threaded |
Round-Head Thumb Screw Profile Round-Head ThumbScrew Profile |
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Thumb Screw Head Shape Thumb Screw Head Shape |
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 | Round |
About Threaded Studs and Rods
More
About Set Screws
More
About Thumb Screw and Binding Post Materials
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Ultra-Fine-Thread Plastic-Head Thumb Screws
Fine threads give you precise control. They have a ball bearing tip that adjusts to angled surfaces and minimizes damage from surface contact. They have a lightweight and nonconductive plastic head and chemical-resistant 18-8 stainless steel threads. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.
Optional threaded inserts can be used to install these thumb screws into existing holes.
For technical drawings and 3-D models, click on a part number.
Thumb Screws
Thumb Screws
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Tip Dia. | Dia. | Ht. | Max. Temperature, °F | Color | Tensile Strength, psi | Each | |
18-8 Stainless Steel | ||||||||
3/16"-100 | ||||||||
| 3/4" | 1/8" | 3/8" | 7/16" | 180° | Black | 60,000 | 000000000 | 000000 |
| 1" | 1/8" | 3/8" | 7/16" | 180° | Black | 60,000 | 000000000 | 00000 |
| 1 1/4" | 1/8" | 3/8" | 7/16" | 180° | Black | 60,000 | 000000000 | 00000 |
| 1 1/2" | 1/8" | 3/8" | 7/16" | 180° | Black | 60,000 | 000000000 | 00000 |
| 1 3/4" | 1/8" | 3/8" | 7/16" | 180° | Black | 60,000 | 000000000 | 00000 |
1/4"-80 | ||||||||
| 3/4" | 3/16" | 1/2" | 3/4" | 180° | Black | 60,000 | 000000000 | 00000 |
| 1" | 3/16" | 1/2" | 3/4" | 180° | Black | 60,000 | 000000000 | 0000 |
| 1 1/4" | 3/16" | 1/2" | 3/4" | 180° | Black | 60,000 | 000000000 | 0000 |
| 1 1/2" | 3/16" | 1/2" | 3/4" | 180° | Black | 60,000 | 000000000 | 0000 |
| 2" | 3/16" | 1/2" | 3/4" | 180° | Black | 60,000 | 000000000 | 00000 |
| 3" | 3/16" | 1/2" | 3/4" | 180° | Black | 60,000 | 000000000 | 00000 |
| 3 1/2" | 3/16" | 1/2" | 3/4" | 180° | Black | 60,000 | 000000000 | 00000 |
Optional Threaded Inserts
Threaded Inserts
Flange | ||||||
|---|---|---|---|---|---|---|
| Installed Lg. | Dia. | Thick. | For Max. Hole Dia. | Drill Bit Size | Each | |
Brass | ||||||
3/16"-100 | ||||||
| 5/16" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 00000 |
| 7/16" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 0000 |
| 5/8" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 0000 |
| 3/4" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 0000 |
1/4"-80 | ||||||
| 5/16" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 7/16" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 5/8" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 3/4" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
Ultra-Fine-Thread Ball-Point Set Screws
Fine threads give you precise control. Made from 303 stainless steel, these set screws have good corrosion resistance. To install screws in unthreaded holes, use an optional threaded insert (sold separately). Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
303 Stainless Steel Set Screws
Tip | ||||||
|---|---|---|---|---|---|---|
| Lg. | Dia. | Material | Drive Size | Hardness | Each | |
6-80 | ||||||
| 3/8" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 000000 |
| 7/16" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 1/2" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 37/64" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 3/4" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 7/8" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 1" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 1 1/8" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 1 1/4" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
| 1 1/2" | 0.094" | Alloy Steel | 5/64" | Not Rated | 000000000 | 00000 |
3/16"-100 | ||||||
| 3/8" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 1" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 1 1/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 1 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 1 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
1/4"-80 | ||||||
| 3/8" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 0000 |
| 1" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1 1/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2 1/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3 1/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
1/4"-100 | ||||||
| 3/8" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1 1/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 1 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2 1/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 2 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3 1/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3 1/2" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 3 3/4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
| 4" | 0.156" | Alloy Steel | 3/32" | Not Rated | 000000000 | 00000 |
Metric 303 Stainless Steel Set Screws
Tip | ||||||
|---|---|---|---|---|---|---|
| Lg., mm | Dia., mm | Material | Drive Size, mm | Hardness | Each | |
M2.5 × 0.2 mm | ||||||
| 8 | 1.5 | Alloy Steel | 1.5 | Not Rated | 000000000 | 000000 |
| 10 | 1.5 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 12 | 1.5 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 15 | 1.5 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 20 | 1.5 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 25 | 1.5 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
M3 × 0.2 mm | ||||||
| 8 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 10 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 12 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 15 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 20 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 25 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 30 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 33 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 36 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 39 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
M3 × 0.25 mm | ||||||
| 8 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 10 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 12 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 15 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 20 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 25 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 30 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 33 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 36 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
| 39 | 1.6 | Alloy Steel | 1.5 | Not Rated | 000000000 | 00000 |
Brass Optional Threaded Inserts
Flange | ||||||
|---|---|---|---|---|---|---|
| Installed Lg. | Dia. | Thick. | For Max. Hole Dia. | Drill Bit Size | Each | |
6-80 | ||||||
| 0.25" | 1/4" | 0.03" | 7/32" | 7/32" | 000000000 | 00000 |
| 0.375" | 1/4" | 0.03" | 7/32" | 7/32" | 000000000 | 0000 |
3/16"-100 | ||||||
| 0.313" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 0000 |
| 0.438" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 0000 |
| 0.625" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 0000 |
| 0.75" | 0.29" | 0.01" | 1/4" | 1/4" | 000000000 | 0000 |
1/4"-80 | ||||||
| 0.313" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 0.438" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 0.625" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 0.75" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
1/4"-100 | ||||||
| 0.313" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 0.438" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 0.625" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
| 0.75" | 0.352" | 0.01" | 5/16" | 5/16" | 000000000 | 0000 |
Metric Brass Optional Threaded Inserts
Flange | ||||||
|---|---|---|---|---|---|---|
| Installed Lg., mm | Dia., mm | Thick., mm | For Max. Hole Dia., mm | Drill Bit Size, mm | Each | |
M2.5 × 0.2 mm | ||||||
| 7 | 4.5 | 0.5 | 4 | 4 | 000000000 | 00000 |
M3 × 0.2 mm | ||||||
| 5 | 4.95 | 0.25 | 4.5 | 4.5 | 000000000 | 0000 |
| 7 | 4.95 | 0.25 | 4.5 | 4.5 | 000000000 | 0000 |
| 9 | 4.95 | 0.25 | 4.5 | 4.5 | 000000000 | 0000 |
M3 × 0.25 mm | ||||||
| 5 | 4.95 | 0.25 | 4.5 | 4.5 | 000000000 | 0000 |
| 7 | 4.95 | 0.25 | 4.5 | 4.5 | 000000000 | 0000 |
| 9 | 4.95 | 0.25 | 4.5 | 4.5 | 000000000 | 0000 |
18-8 Stainless Steel Threaded Rods
18-8 stainless steel threaded rods have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.