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 | Extended |
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Head Type Head Type |
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 | Thumb |
Threading Threading |
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 | Partially Threaded |
Round-Head Thumb Screw Profile Round-Head ThumbScrew Profile |
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 | Low |
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Thread Direction Thread Direction |
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 | Right Hand |
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Head Texture Head Texture |
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 | Knurled |
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About Thumb Screw and Binding Post Materials
More
Stainless Steel Knurled-Head Extended-Tip Thumb Screws
Made from 18-8 stainless steel, these thumb screws are chemical resistant and may be mildly magnetic. Also known as dog- and pilot-point thumb screws, insert the point into a drilled hole or slot to hold items in place. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Tip | Head | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Thread Lg. | Dia. | Lg. | Dia. | Ht. | Tensile Strength, psi | Hardness | Each | |
18-8 Stainless Steel | |||||||||
10-24 | |||||||||
| 1 1/4" | 15/16" | 1/8" | 1/8" | 3/4" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1 5/8" | 1 5/16" | 1/8" | 1/8" | 3/4" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2" | 1 11/16" | 1/8" | 1/8" | 3/4" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
10-32 | |||||||||
| 1" | 5/8" | 1/8" | 1/8" | 3/4" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | 1 1/8" | 1/8" | 1/8" | 3/4" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2" | 1 5/8" | 1/8" | 1/8" | 3/4" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
1/4"-20 | |||||||||
| 1" | 5/8" | 3/16" | 1/8" | 1" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | 1 1/8" | 3/16" | 1/8" | 1" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2" | 1 5/8" | 3/16" | 1/8" | 1" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 2 1/2" | 2 1/8" | 3/16" | 1/8" | 1" | 5/16" | 80,000 | Rockwell B83 | 000000000 | 0000 |
5/16"-18 | |||||||||
| 1" | 11/16" | 15/64" | 3/16" | 1 1/8" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 1 1/2" | 1" | 15/64" | 3/16" | 1 1/8" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 1 3/4" | 1 1/4" | 15/64" | 3/16" | 1 1/8" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2 1/4" | 1 3/4" | 15/64" | 3/16" | 1 1/8" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2 3/4" | 2 1/4" | 15/64" | 3/16" | 1 1/8" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3" | 2 1/2" | 15/64" | 3/16" | 1 1/8" | 3/8" | 80,000 | Rockwell B83 | 000000000 | 00000 |
3/8"-16 | |||||||||
| 1 1/2" | 15/16" | 9/32" | 3/16" | 1 1/4" | 7/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2" | 1 7/16" | 9/32" | 3/16" | 1 1/4" | 7/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 2 1/2" | 1 15/16" | 9/32" | 3/16" | 1 1/4" | 7/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3" | 2 7/16" | 9/32" | 3/16" | 1 1/4" | 7/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3 1/2" | 2 15/16" | 9/32" | 3/16" | 1 1/4" | 7/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 4" | 3 7/16" | 9/32" | 3/16" | 1 1/4" | 7/16" | 80,000 | Rockwell B83 | 000000000 | 00000 |
1/2"-13 | |||||||||
| 2 1/2" | 1 3/4" | 25/64" | 1/4" | 1 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3" | 2 1/4" | 25/64" | 1/4" | 1 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 3 1/2" | 2 3/4" | 25/64" | 1/4" | 1 1/4" | 1/2" | 80,000 | Rockwell B83 | 000000000 | 00000 |
Steel Knurled-Head Extended-Tip Thumb Screws
Also known as dog- and pilot-point thumb screws, insert the point into a drilled hole or slot to hold objects in place. A black-oxide finish provides corrosion resistance in dry environments. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Tip | Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Thread Lg. | Dia. | Lg. | Dia. | Ht. | Material | Tensile Strength, psi | Hardness | Each | |
Black-Oxide Steel | ||||||||||
10-24 | ||||||||||
| 1" | 5/8" | 1/8" | 3/32" | 3/4" | 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 00000 |
| 1 1/2" | 1 1/8" | 1/8" | 3/32" | 3/4" | 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
| 2" | 1 5/8" | 1/8" | 3/32" | 3/4" | 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
10-32 | ||||||||||
| 1" | 5/8" | 1/8" | 1/8" | 3/4" | 5/16" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
| 1 1/2" | 1 1/4" | 1/8" | 1/8" | 3/4" | 1/4" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
| 2" | 1 5/8" | 1/8" | 1/8" | 3/4" | 5/16" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
1/4"-20 | ||||||||||
| 1" | 5/8" | 5/32" | 1/8" | 1" | 5/16" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
| 1 1/2" | 1 1/4" | 5/32" | 1/8" | 1" | 5/16" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
| 2" | 1 5/8" | 5/32" | 1/8" | 1" | 5/16" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
| 2 1/2" | 2 1/8" | 5/32" | 1/8" | 1" | 5/16" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
5/16"-18 | ||||||||||
| 1" | 11/16" | 13/64" | 5/32" | 1 1/8" | 3/8" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
| 1 1/2" | 1 1/16" | 13/64" | 5/32" | 1 1/8" | 3/8" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
| 2" | 1 1/2" | 13/64" | 5/32" | 1 1/8" | 3/8" | Steel | 180,000 | Rockwell C40 | 000000000 | 0000 |
| 2 1/2" | 2 1/16" | 13/64" | 5/32" | 1 1/8" | 3/8" | Steel | 180,000 | Rockwell C40 | 000000000 | 0000 |
| 3" | 2 1/2" | 13/64" | 5/32" | 1 1/8" | 3/8" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
3/8"-16 | ||||||||||
| 1 1/2" | 15/16" | 1/4" | 3/16" | 1 1/4" | 7/16" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
| 2" | 1 9/16" | 1/4" | 3/16" | 1 1/4" | 7/16" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
| 2 1/2" | 2 1/16" | 1/4" | 3/16" | 1 1/4" | 7/16" | Black-Oxide Steel | Not Rated | Not Rated | 000000000 | 0000 |
| 3" | 2 1/2" | 1/4" | 3/16" | 1 1/4" | 7/16" | Steel | 180,000 | Rockwell C40 | 000000000 | 0000 |
| 3 1/2" | 2 15/16" | 1/4" | 3/16" | 1 1/4" | 7/16" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
| 4" | 3 7/16" | 1/4" | 3/16" | 1 1/4" | 7/16" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
1/2"-13 | ||||||||||
| 2 1/2" | 1 3/4" | 11/32" | 1/4" | 1 1/4" | 1/2" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
| 3" | 2 1/2" | 11/32" | 1/4" | 1 1/4" | 1/2" | Steel | 180,000 | Rockwell C40 | 000000000 | 0000 |
| 3 1/2" | 2 3/4" | 11/32" | 1/4" | 1 1/4" | 1/2" | Black-Oxide Steel | 70,000 | Rockwell B84 | 000000000 | 0000 |
Four-Arm Extended-Tip Thumb Screws
Aluminum Head
Also known as dog- and pilot-point thumb screws, insert the point into a drilled hole or slot to hold items in place. Arms provide a flat surface to push your fingers against. A black-oxide finish on the threads provides corrosion resistance in dry environments. Length is measured from under the collar.
Aluminum heads are lightweight and corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Tip | Head | Collar | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Thread Lg. | Dia. | Lg. | Wd. | Ht. | Material | Dia. | Ht. | Tensile Strength, psi | Hardness | Each | |
Black-Oxide Steel | ||||||||||||
1/4"-20 | ||||||||||||
| 2 1/2" | 2 1/4" | 1/8" | 1/8" | 1 1/8" | 3/4" | Aluminum | 1/2" | 3/8" | 70,000 | Rockwell C40 | 000000000 | 00000 |
5/16"-18 | ||||||||||||
| 2" | 1 3/4" | 3/16" | 5/32" | 1 1/2" | 7/8" | Aluminum | 19/32" | 1/2" | 70,000 | Rockwell C40 | 000000000 | 0000 |
3/8"-16 | ||||||||||||
| 2 1/16" | 1 3/4" | 1/4" | 3/16" | 2" | 1" | Aluminum | 11/16" | 5/8" | 70,000 | Rockwell C40 | 000000000 | 0000 |
| 2 9/16" | 2 1/4" | 1/4" | 3/16" | 2" | 1" | Aluminum | 11/16" | 5/8" | 70,000 | Rockwell C40 | 000000000 | 0000 |
| 3 1/16" | 2 3/4" | 1/4" | 3/16" | 2" | 1" | Aluminum | 11/16" | 5/8" | 70,000 | Rockwell C40 | 000000000 | 0000 |
1/2"-13 | ||||||||||||
| 2 9/16" | 2 1/4" | 11/32" | 1/4" | 2 1/2" | 1 1/2" | Aluminum | 1 1/16" | 1" | 70,000 | Rockwell C40 | 000000000 | 00000 |
| 3 1/16" | 2 3/4" | 11/32" | 1/4" | 2 1/2" | 1 1/2" | Aluminum | 1 1/16" | 1" | 70,000 | Rockwell C40 | 000000000 | 00000 |
| 3 9/16" | 3 1/4" | 11/32" | 1/4" | 2 1/2" | 1 1/2" | Aluminum | 1 1/16" | 1" | 70,000 | Rockwell C40 | 000000000 | 00000 |