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DFARS Specialty Metals
Export Control Classification Number (ECCN)
Press-Fit Locating and Support Buttons
Support and position workpieces and fixtures from the bottom or side. These buttons press into a drilled hole for permanent installation. 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
Stud | Tolerance | ||||||
|---|---|---|---|---|---|---|---|
| Dia. | Lg. | Dia. | Lg. | Lg. | Stud Dia. | Each | |
Steel | |||||||
| 1/4" | 1/8" | 1/8" | 7/32" | 0" to 0.001" | 0.001" to 0.0015" | 0000000 | 00000 |
| 1/4" | 1/4" | 3/16" | 7/32" | 0.01" to 0.015" | 0.0005" to 0.001" | 0000000 | 0000 |
| 3/8" | 1/8" | 1/8" | 7/32" | 0" to 0.001" | 0.001" to 0.0015" | 0000000 | 0000 |
| 3/8" | 1/4" | 3/16" | 7/32" | 0.01" to 0.015" | 0.0005" to 0.001" | 0000000 | 0000 |
| 3/8" | 1/4" | 1/4" | 1/2" | 0" to 0.001" | 0.0005" to 0.001" | 0000000 | 0000 |
| 3/8" | 3/8" | 3/16" | 3/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 3/8" | 1/2" | 3/16" | 3/8" | 0" to 0.005" | 0.0005" to 0.001" | 0000000 | 0000 |
| 1/2" | 1/8" | 1/8" | 7/32" | 0" to 0.001" | 0.001" to 0.0015" | 0000000 | 0000 |
| 1/2" | 1/4" | 1/4" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 1/2" | 3/8" | 1/4" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 1/2" | 1/2" | 1/4" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 5/8" | 1/4" | 3/8" | 15/32" | 0.01" to 0.015" | 0.0005" to 0.001" | 0000000 | 0000 |
| 5/8" | 5/16" | 5/16" | 1/2" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 5/8" | 3/8" | 3/8" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 5/8" | 7/16" | 5/16" | 1/2" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 5/8" | 1/2" | 3/8" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 5/8" | 5/8" | 3/8" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 5/8" | 3/4" | 3/8" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 5/8" | 7/8" | 5/16" | 1/2" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 5/8" | 1" | 3/8" | 1/2" | 0" to 0.005" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 3/4" | 1 1/2" | 1/2" | 1/2" | 0" to 0.01" | 0.0005" to 0.0015" | 0000000 | 0000 |
| 7/8" | 1/4" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 5/16" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 3/8" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 7/16" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 1/2" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 9/16" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 5/8" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 11/16" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 3/4" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 13/16" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 7/8" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 15/16" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 7/8" | 1" | 1/2" | 5/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 1" | 3/8" | 5/8" | 3/4" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 00000 |
| 1" | 1/2" | 5/8" | 3/4" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 1" | 5/8" | 5/8" | 3/4" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 1" | 3/4" | 5/8" | 3/4" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 0000 |
| 1 1/2" | 1/4" | 1" | 1 3/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 00000 |
| 1 1/2" | 1/2" | 1" | 1 3/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 00000 |
| 1 1/2" | 3/4" | 1" | 1 3/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 00000 |
| 1 1/2" | 1" | 1" | 1 3/8" | 0" to 0.001" | -0.0005" to 0" | 00000000 | 00000 |
Stainless Steel  | |||||||
| 3/8" | 1/4" | 3/16" | 1/4" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
| 3/8" | 3/8" | 3/16" | 1/4" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
| 3/8" | 1/2" | 3/16" | 1/4" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
| 1/2" | 1/4" | 1/4" | 5/16" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
| 1/2" | 3/8" | 1/4" | 5/16" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
| 1/2" | 1/2" | 5/16" | 5/16" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
| 1/2" | 3/4" | 5/16" | 5/16" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
| 1/2" | 1" | 5/16" | 5/16" | 0" to 0.001" | -0.015" to 0" | 00000000 | 0000 |
Threaded Locating and Support Buttons
Use these buttons to support and position workpieces and fixtures from the bottom or side. Their hex shape lets you screw them into a threaded hole with a wrench or socket. Threading makes these buttons easier to replace than press-fit, so they are a good choice for high-wear applications. They’re also known as rest buttons.
For technical drawings and 3-D models, click on a part number.
Inch
Thread | ||||||
|---|---|---|---|---|---|---|
| Lg. | Wd. | Size | Lg. | Lg. Tolerance | Each | |
Steel | ||||||
| 3/16" | 1/4" | 8-32 | 3/16" | 0" to 0.015" | 0000000 | 00000 |
| 3/16" | 5/16" | 10-32 | 1/4" | 0" to 0.015" | 0000000 | 0000 |
| 3/16" | 3/8" | 1/4"-28 | 5/16" | 0" to 0.015" | 0000000 | 0000 |
| 1/4" | 3/8" | 1/4"-20 | 3/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 1/4" | 3/8" | 1/4"-28 | 5/16" | 0" to 0.015" | 0000000 | 0000 |
| 1/4" | 1/2" | 3/8"-16 | 1/2" | -0.003" to 0.012" | 00000000 | 0000 |
| 1/4" | 1/2" | 3/8"-24 | 7/16" | 0" to 0.015" | 0000000 | 0000 |
| 1/4" | 5/8" | 1/2"-13 | 5/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 1/4" | 3/4" | 5/8"-11 | 3/4" | 0" to 0.012" | 00000000 | 0000 |
| 3/8" | 3/8" | 1/4"-20 | 3/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 3/8" | 3/8" | 1/4"-28 | 5/16" | 0" to 0.015" | 0000000 | 0000 |
| 3/8" | 1/2" | 3/8"-16 | 1/2" | -0.003" to 0.012" | 00000000 | 0000 |
| 3/8" | 1/2" | 3/8"-24 | 7/16" | 0" to 0.015" | 0000000 | 0000 |
| 3/8" | 5/8" | 1/2"-13 | 5/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 3/8" | 3/4" | 5/8"-11 | 3/4" | 0" to 0.012" | 00000000 | 0000 |
| 1/2" | 3/8" | 1/4"-20 | 3/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 1/2" | 1/2" | 3/8"-16 | 1/2" | -0.003" to 0.012" | 00000000 | 0000 |
| 1/2" | 1/2" | 3/8"-24 | 1/2" | 0.005" to 0.015" | 000000 | 0000 |
| 1/2" | 5/8" | 1/2"-13 | 5/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 1/2" | 5/8" | 1/2"-20 | 1/2" | 0.005" to 0.015" | 000000 | 0000 |
| 1/2" | 3/4" | 1/2"-20 | 9/16" | 0" to 0.015" | 0000000 | 0000 |
| 1/2" | 3/4" | 5/8"-11 | 3/4" | 0" to 0.012" | 00000000 | 0000 |
| 3/4" | 3/8" | 1/4"-20 | 3/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 3/4" | 3/8" | 1/4"-28 | 3/8" | 0.005" to 0.015" | 000000 | 0000 |
| 3/4" | 1/2" | 3/8"-16 | 1/2" | -0.003" to 0.012" | 00000000 | 0000 |
| 3/4" | 1/2" | 3/8"-24 | 1/2" | 0.005" to 0.015" | 000000 | 0000 |
| 3/4" | 5/8" | 1/2"-13 | 5/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 3/4" | 5/8" | 1/2"-20 | 1/2" | 0.005" to 0.015" | 000000 | 0000 |
| 3/4" | 3/4" | 5/8"-11 | 3/4" | 0" to 0.012" | 00000000 | 0000 |
| 1" | 3/8" | 1/4"-20 | 3/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 1" | 3/8" | 1/4"-28 | 3/8" | 0.005" to 0.015" | 000000 | 0000 |
| 1" | 1/2" | 3/8"-16 | 1/2" | -0.003" to 0.012" | 00000000 | 0000 |
| 1" | 1/2" | 3/8"-24 | 1/2" | 0.005" to 0.015" | 000000 | 0000 |
| 1" | 5/8" | 1/2"-13 | 5/8" | -0.003" to 0.012" | 00000000 | 0000 |
| 1" | 5/8" | 1/2"-20 | 1/2" | 0.005" to 0.015" | 000000 | 0000 |
| 1" | 3/4" | 5/8"-11 | 3/4" | 0" to 0.012" | 00000000 | 0000 |