About Thumb Screw and Binding Post Materials
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Metric Stainless Steel Raised Knurled-Head Thumb Screws
These 18-8 stainless steel thumb screws are chemical resistant and may be mildly magnetic. They have a raised head that makes them easy to grip. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the collar.
Head, mm | Collar, mm | |||||||
|---|---|---|---|---|---|---|---|---|
| Lg., mm | Dia. | Ht. | Dia. | Ht. | Tensile Strength, psi  | Hardness | Each | |
18-8 Stainless Steel | ||||||||
M3.5 × 0.6 mm | ||||||||
| 6 | 12 | 2.5 | 6 | 5 | 80,000 | Rockwell B83 | 000000000 | 00000 |
| 8 | 12 | 2.5 | 6 | 5 | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 10 | 12 | 2.5 | 6 | 5 | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 12 | 12 | 2.5 | 6 | 5 | 80,000 | Rockwell B83 | 000000000 | 0000 |
| 16 | 12 | 2.5 | 6 | 5 | 80,000 | Rockwell B83 | 000000000 | 0000 |
Stainless Steel Flared-Collar Knurled-Head Thumb Screws
Made from 18-8 stainless steel, these thumb screws are chemical resistant and may be mildly magnetic. 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.
Metric Stainless Steel Low-Profile Knurled-Head Thumb Screws
Made from 18-8 stainless steel, these thumb screws are chemical resistant and may be mildly magnetic. 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.
Metric Narrow Knurled-Head Thumb Screws
Use these slim thumb screws in tight spaces. Made from 18-8 stainless steel, they're chemical resistant and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.