Round-Head Thumb Screw Profile Round-Head ThumbScrew Profile |
|---|
 |  |
| Flared Collar | Low |
 | |
| Raised |
Tensile Strength Tensile Strength |
|---|
|
Hardness Hardness |
|---|
|
About Thumb Screw and Binding Post Materials
More
Brass Flared-Collar Knurled-Head Thumb Screws
These thumb screws are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. They have a slightly raised head and a decorative flared collar. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the flange.
For technical drawings and 3-D models, click on a part number.
Head | Collar | ||||||
|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Dia. | Ht. | Pkg. Qty. | Pkg. | |
Brass | |||||||
6-32 | |||||||
| 1/4" | 3/8" | 1/8" | 3/8" | 3/16" | 25 | 000000000 | 000000 |
| 3/8" | 3/8" | 1/8" | 3/8" | 3/16" | 25 | 000000000 | 00000 |
| 1/2" | 3/8" | 1/8" | 3/8" | 3/16" | 25 | 000000000 | 00000 |
| 3/4" | 3/8" | 1/8" | 3/8" | 3/16" | 25 | 000000000 | 00000 |
| 1" | 3/8" | 1/8" | 3/8" | 3/16" | 25 | 000000000 | 00000 |
8-32 | |||||||
| 3/8" | 13/32" | 9/64" | 3/8" | 3/16" | 25 | 000000000 | 00000 |
| 1/2" | 13/32" | 9/64" | 3/8" | 3/16" | 25 | 000000000 | 00000 |
| 3/4" | 13/32" | 9/64" | 3/8" | 3/16" | 10 | 000000000 | 0000 |
| 1" | 13/32" | 9/64" | 3/8" | 3/16" | 10 | 000000000 | 0000 |
10-24 | |||||||
| 3/8" | 7/16" | 9/64" | 3/8" | 1/4" | 25 | 000000000 | 00000 |
| 1/2" | 7/16" | 9/64" | 3/8" | 1/4" | 10 | 000000000 | 0000 |
| 3/4" | 7/16" | 9/64" | 3/8" | 1/4" | 10 | 000000000 | 0000 |
| 1" | 7/16" | 9/64" | 3/8" | 1/4" | 10 | 000000000 | 0000 |
10-32 | |||||||
| 3/8" | 7/16" | 9/64" | 3/8" | 1/4" | 25 | 000000000 | 00000 |
| 1/2" | 7/16" | 9/64" | 3/8" | 1/4" | 10 | 000000000 | 0000 |
| 3/4" | 7/16" | 9/64" | 3/8" | 1/4" | 10 | 000000000 | 0000 |
| 1" | 7/16" | 9/64" | 3/8" | 1/4" | 10 | 000000000 | 0000 |
1/4"-20 | |||||||
| 3/8" | 9/16" | 5/32" | 1/2" | 1/4" | 10 | 000000000 | 00000 |
| 1/2" | 9/16" | 5/32" | 1/2" | 1/4" | 10 | 000000000 | 00000 |
| 3/4" | 9/16" | 5/32" | 1/2" | 1/4" | 10 | 000000000 | 00000 |
| 1" | 9/16" | 5/32" | 1/2" | 1/4" | 10 | 000000000 | 00000 |
Brass Low-Profile Knurled-Head Thumb Screws
These thumb screws are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. They have a thin head for use in low-clearance applications. 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.
Head | ||||||
|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Tensile Strength, psi | Hardness | Each | |
Brass | ||||||
4-40 | ||||||
| 5/16" | 5/16" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 00000 |
| 3/8" | 5/16" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
6-32 | ||||||
| 3/8" | 5/16" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 1/2" | 5/16" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
8-32 | ||||||
| 3/8" | 3/8" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 1/2" | 3/8" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
10-24 | ||||||
| 1/2" | 3/8" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 5/8" | 3/8" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
10-32 | ||||||
| 1/2" | 3/8" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 5/8" | 3/8" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
1/4"-20 | ||||||
| 3/4" | 1/2" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 1" | 1/2" | 3/16" | 50,000 | Rockwell B78 | 000000000 | 0000 |
Brass Raised Knurled-Head Thumb Screws
These thumb screws are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. A raised head makes them easy to grip. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the collar.
For technical drawings and 3-D models, click on a part number.
Head | Collar | |||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Dia. | Ht. | Tensile Strength, psi | Hardness | Each | |
Brass | ||||||||
4-40 | ||||||||
| 1/4" | 3/8" | 3/32" | 1/4" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 00000 |
| 3/8" | 3/8" | 3/32" | 1/4" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
6-32 | ||||||||
| 7/16" | 7/16" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 9/16" | 7/16" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
8-32 | ||||||||
| 3/8" | 1/2" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 1/2" | 1/2" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 5/8" | 1/2" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
10-32 | ||||||||
| 3/8" | 1/2" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 1/2" | 1/2" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 5/8" | 1/2" | 7/32" | 3/8" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
1/4"-20 | ||||||||
| 1/2" | 5/8" | 5/16" | 1/2" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 5/8" | 5/8" | 5/16" | 1/2" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
| 3/4" | 5/8" | 5/16" | 1/2" | 1/8" | 50,000 | Rockwell B78 | 000000000 | 0000 |
Brass Spade-Head Thumb Screws
These thumb screws are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||
|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Tensile Strength, psi | Hardness | Pkg. Qty. | Pkg. | |
Brass | |||||||
10-24 | |||||||
| 1/2" | 9/16" | 3/8" | 50,000 | Rockwell B40 | 5 | 000000000 | 00000 |
| 3/4" | 9/16" | 3/8" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
| 1" | 9/16" | 3/8" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
10-32 | |||||||
| 1/2" | 9/16" | 3/8" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
| 3/4" | 9/16" | 3/8" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
| 1" | 9/16" | 3/8" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
1/4"-20 | |||||||
| 1/2" | 23/32" | 1/2" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
| 3/4" | 23/32" | 1/2" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
| 1" | 23/32" | 1/2" | 50,000 | Rockwell B40 | 5 | 000000000 | 0000 |
| 1 1/2" | 23/32" | 1/2" | 50,000 | Rockwell B40 | 5 | 000000000 | 00000 |
| 2" | 23/32" | 1/2" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |
5/16"-18 | |||||||
| 3/4" | 7/8" | 11/16" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |
| 1" | 7/8" | 11/16" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |
| 1 1/2" | 7/8" | 11/16" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |
| 2" | 7/8" | 11/16" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |
3/8"-16 | |||||||
| 1" | 1 3/32" | 13/16" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |
| 1 1/2" | 1 3/32" | 13/16" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |
| 2" | 1 3/32" | 13/16" | 50,000 | Rockwell B40 | 1 | 000000000 | 0000 |