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About Thumb Screw and Binding Post Materials
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Metric Steel Low-Profile Knurled-Head Thumb Screws
These thumb screws have a thin head for use in low-clearance applications. The head is knurled for slip-resistant controlled adjustment. They have a black-oxide finish to resist corrosion in dry environments. Length is measured from under the head.
Head, mm | |||||||
|---|---|---|---|---|---|---|---|
| Lg., mm | Dia. | Ht. | Tensile Strength, psi  | Hardness | Specifications Met | Each | |
Black-Oxide Steel | |||||||
M3 × 0.5 mm | |||||||
| 6 | 12 | 2.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 00000 |
| 10 | 12 | 2.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 16 | 12 | 2.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
M4 × 0.7 mm | |||||||
| 8 | 16 | 3.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 10 | 16 | 3.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 12 | 16 | 3.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 16 | 16 | 3.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 20 | 16 | 3.5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
M5 × 0.8 mm | |||||||
| 10 | 20 | 4 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 12 | 20 | 4 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 16 | 20 | 4 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 20 | 20 | 4 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
M6 × 1 mm | |||||||
| 12 | 24 | 5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 16 | 24 | 5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 20 | 24 | 5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 30 | 24 | 5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 40 | 24 | 5 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
M8 × 1.25 mm | |||||||
| 16 | 30 | 6 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 20 | 30 | 6 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 25 | 30 | 6 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 30 | 30 | 6 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |
| 40 | 30 | 6 | 70,000 | Rockwell B84 | DIN 653 | 000000000 | 0000 |