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Export Control Classification Number (ECCN)
DFARS Specialty Metals
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REACH
Screw-Mount Locating and Support Buttons
Also known as rest buttons, these buttons support workpieces and fixtures from the bottom or side. Mount them onto a screw or stud extending from your jig or table.
Stainless steel buttons are corrosion resistant. They’re usually paired with stainless steel workpieces or fixtures.
Round buttons have an unthreaded, counterbored through hole. Mount them to a socket head cap screw.
Inch
Flat Head
| Dia. | Lg. | Lg. Tolerance | For Mounting Screw Size  | Mounting Fasteners Included | Each | |
Steel—Round with Flat Head | ||||||
|---|---|---|---|---|---|---|
| 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—Round with Flat Head | ||||||
| 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—Round with Flat Head | ||||||
| 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 |
