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Export Control Classification Number (ECCN)
DFARS Specialty Metals
REACH
Screw-Mount Locating and Support Buttons
Mount through the counterbored hole with a socket head cap screw to support and position workpieces and fixtures from the bottom or side. They’re also known as rest buttons.
Stainless steel buttons are a good choice to avoid corrosion when working with stainless steel workpieces or fixtures.
For technical drawings and 3-D models, click on a part number.
Inch
| Dia. | Lg. | Lg. Tolerance | For Mounting Screw Size  | Mounting Fasteners Included | Each | |
Steel | ||||||
|---|---|---|---|---|---|---|
| 5/16" | 5/32" | 0" to 0.001" | No. 2 | No | 0000000 | 00000 |
| 3/8" | 3/16" | 0" to 0.001" | No. 4 | No | 0000000 | 0000 |
| 3/8" | 1/4" | 0" to 0.001" | No. 6 | No | 0000000 | 0000 |
| 3/8" | 1/4" | 0" to 0.001" | No. 8 | No | 0000000 | 0000 |
| 1/2" | 1/2" | -0.001" to 0.001" | No. 10 | No | 0000000 | 0000 |
| 5/8" | 1/2" | 0" to 0.001" | 1/4" | No | 0000000 | 0000 |
| 5/8" | 5/8" | -0.001" to 0.001" | 1/4" | No | 0000000 | 0000 |
| 5/8" | 3/4" | 0" to 0.001" | 1/4" | No | 0000000 | 0000 |
| 5/8" | 1" | 0" to 0.001" | 1/4" | No | 0000000 | 0000 |
| 3/4" | 1/2" | -0.001" to 0.001" | 5/16" | No | 0000000 | 0000 |
| 3/4" | 5/8" | -0.001" to 0.001" | 5/16" | No | 0000000 | 0000 |
| 3/4" | 3/4" | -0.001" to 0.001" | 5/16" | No | 0000000 | 0000 |
| 7/8" | 1 1/8" | 0" to 0.001" | 5/16" | No | 00000000 | 0000 |
| 15/16" | 5/8" | -0.001" to 0.001" | 3/8" | No | 0000000 | 0000 |
| 15/16" | 3/4" | -0.001" to 0.001" | 3/8" | No | 0000000 | 0000 |
| 15/16" | 1" | -0.001" to 0.001" | 3/8" | No | 0000000 | 0000 |
| 1 1/4" | 7/8" | -0.001" to 0.001" | 1/2" | No | 0000000 | 0000 |
| 1 1/4" | 1 1/2" | 0" to 0.001" | 3/8" | No | 00000000 | 00000 |
| 1 1/4" | 2" | 0" to 0.001" | 3/8" | No | 00000000 | 00000 |
| 1 5/8" | 1 1/4" | 0" to 0.001" | 1/2" | No | 00000000 | 00000 |
| 1 5/8" | 1 3/4" | 0" to 0.001" | 1/2" | No | 00000000 | 00000 |
| 1 5/8" | 2 1/4" | 0" to 0.001" | 1/2" | No | 00000000 | 00000 |
Acetal Plastic | ||||||
| 3/8" | 3/8" | -0.005" to 0" | No. 6 | No | 0000000 | 0000 |
| 1/2" | 1/2" | -0.005" to 0" | No. 8 | No | 0000000 | 0000 |
| 5/8" | 1/2" | -0.005" to 0" | No. 8 | No | 0000000 | 0000 |
| 3/4" | 1/2" | -0.005" to 0" | No. 10 | No | 0000000 | 0000 |
| 1" | 1/2" | -0.005" to 0" | 1/4" | No | 0000000 | 0000 |
Stainless Steel | ||||||
| 3/8" | 3/8" | -0.001" to 0.001" | No. 6 | No | 0000000 | 0000 |
| 1/2" | 1/2" | -0.001" to 0.001" | No. 8 | No | 0000000 | 0000 |
| 5/8" | 1/2" | -0.001" to 0.001" | No. 8 | No | 0000000 | 0000 |
| 3/4" | 1/2" | -0.001" to 0.001" | No. 10 | No | 0000000 | 0000 |
| 1" | 1/2" | -0.001" to 0.001" | 1/4" | No | 0000000 | 00000 |