Length Length |
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Mount Type Mount Type |
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![]() | ![]() |
Threaded Stud | Press Fit |
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Screw |
Material Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Height Height |
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Load Capacity Load Capacity |
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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.
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 |
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.
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 |
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.
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 | 0000 |
1 1/4" | 2" | 0" to 0.001" | 3/8" | No | 00000000 | 0000 |
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 |
Swiveling Locating and Support Buttons

The swiveling tip supports uneven and angled surfaces on workpieces and fixtures. These buttons screw into a threaded hole. Also known as rest buttons.
For technical drawings and 3-D models, click on a part number.
Head | Thread | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Tip Dia. | Lg. | Wd. | Tip-to-Head Lg. | Lg. | Size | Lg. | Range of Motion | Head Lg. Tolerance | Load Capacity, lbs. | Tip Material | Each | |
Steel | ||||||||||||
1/4" | 1/4" | 3/8" | 1/16" | 5/16" | 10-32 | 1/2" | 28° | -0.002" to 0.002" | 1,150 | Stainless Steel | 0000000 | 000000 |
5/16" | 5/16" | 7/16" | 1/8" | 7/16" | 1/4"-20 | 1/2" | 28° | -0.002" to 0.002" | 2,400 | Stainless Steel | 0000000 | 00000 |
7/16" | 3/8" | 1/2" | 1/8" | 1/2" | 5/16"-18 | 1/2" | 28° | -0.002" to 0.002" | 2,750 | Stainless Steel | 0000000 | 00000 |
9/16" | 1/2" | 5/8" | 1/8" | 5/8" | 3/8"-16 | 1/2" | 28° | -0.002" to 0.002" | 3,400 | Stainless Steel | 0000000 | 00000 |
3/4" | 5/8" | 13/16" | 1/8" | 3/4" | 1/2"-13 | 1" | 32° | -0.002" to 0.002" | 5,900 | Stainless Steel | 0000000 | 00000 |
13/16" | 11/16" | 15/16" | 1/8" | 13/16" | 5/8"-11 | 1" | 32° | -0.002" to 0.002" | 9,900 | Stainless Steel | 0000000 | 00000 |
Domed-Head Locating and Support Buttons

Support rounded or irregularly shaped workpieces from the bottom or side with minimal contact. Press the stud into a drilled hole for permanent installation. Also known as rest buttons.
Stainless steel buttons resist corrosion. They’re a good choice when working with stainless steel workpieces or fixtures.
For technical drawings and 3-D models, click on a part number.
Stud | Tolerance | ||||||
---|---|---|---|---|---|---|---|
Dia. | Lg. | Dia. | Lg. | Lg. | Stud Dia. | Each | |
Steel | |||||||
1/4" | 1/8" | 3/16" | 1/4" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
5/16" | 3/8" | 3/16" | 1/4" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 0000 |
3/8" | 1/2" | 1/4" | 5/16" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 0000 |
1/2" | 9/16" | 3/8" | 3/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 0000 |
1/2" | 5/8" | 3/8" | 3/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 0000 |
1/2" | 3/4" | 3/8" | 3/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 0000 |
1/2" | 7/8" | 3/8" | 3/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 0000 |
5/8" | 3/8" | 1/2" | 5/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
3/4" | 3/4" | 5/8" | 1/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
1" | 7/8" | 3/4" | 3/4" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
1" | 1 3/4" | 3/4" | 3/4" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
1 1/4" | 2 1/8" | 7/8" | 7/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
Stainless Steel | |||||||
5/16" | 1/8" | 3/16" | 1/4" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
3/8" | 3/16" | 1/4" | 5/16" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
1/2" | 1/4" | 3/8" | 3/8" | -0.002" to 0.002" | -0.0005" to 0" | 0000000 | 00000 |
Locating and Support Pads


With a larger contact surface than locating and support buttons, these pads can support large workpieces and fixtures. They’re also known as rest pads.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Hole | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Lg. | Edge Ht. | Lg. | Wd. | Ht. | Ht. Tolerance | For Mounting Screw Size | Mounting Fasteners Included | Ctr.-to-Ctr. | Ctr.-to-Edge | No. of | Each | |
Steel | ||||||||||||
1" | 3/8" | 2" | 1" | 0.475" | 0" to 0.0005" | No. 10 | No | 1 1/2" | __ | 2 | 0000000 | 000000 |
1 1/2" | 1/2" | 2 1/2" | 1 1/2" | 0.6" | 0" to 0.0005" | 1/4" | No | 2" | __ | 2 | 0000000 | 00000 |
2" | 1/2" | 3" | 2" | 0.725" | 0" to 0.0005" | 1/4" | No | 1", 2 1/2" | 1/2" | 4 | 0000000 | 00000 |
2" | 5/8" | 3 1/2" | 1" | 0.72" | 0" to 0.0005" | 5/16" | No | 2 3/4" | __ | 2 | 0000000 | 00000 |
3" | 5/8" | 4 1/2" | 1" | 0.72" | 0" to 0.0005" | 5/16" | No | 3 3/4" | __ | 2 | 0000000 | 00000 |
4" | 5/8" | 5 1/2" | 1" | 0.72" | 0" to 0.0005" | 5/16" | No | 4 3/4" | __ | 2 | 0000000 | 00000 |
Step Blocks

Use these blocks to support setup clamps. Fit the nonslip steps together for quick height adjustments.
Height range applies when blocks are used as a pair.
Step | |||||||||
---|---|---|---|---|---|---|---|---|---|
Ht. Range | Lg. | Wd. | Ht. | Ht. | Dp. | Hole Dia. | Material | Pair | |
3/4"-1 5/8" | 1 1/16" | 1" | 11/16" | 1/8" | 1/16" | __ | Steel | 000000 | 00000 |
1 1/8"-2 1/2" | 1 39/64" | 1" | 1 1/16" | 1/8" | 1/16" | __ | Steel | 000000 | 0000 |
1 3/4"-4" | 2 17/32" | 1 1/2" | 1 43/64" | 1/8" | 1/16" | __ | Steel | 000000 | 00000 |
1 3/4"-4" | 2 17/32" | 2" | 1 43/64" | 1/8" | 1/16" | __ | Steel | 0000000 | 00000 |
2 1/2"-6" | 3 3/4" | 1" | 2 15/32" | 1/8" | 1/16" | 1" | Steel | 000000 | 00000 |
2 1/2"-6" | 3 3/4" | 1 1/2" | 2 15/32" | 1/8" | 1/16" | 1" | Steel | 000000 | 00000 |
2 1/2"-6" | 3 3/4" | 2" | 2 15/32" | 1/8" | 1/16" | 1" | Steel | 0000000 | 00000 |
3 1/2"-9" | 5 21/64" | 1 1/2" | 3 7/16" | 1/8" | 1/16" | 1 5/8" | Steel | 0000000 | 00000 |
3 1/2"-9" | 5 21/64" | 2" | 3 7/16" | 1/8" | 1/16" | 1 5/8" | Steel | 0000000 | 00000 |
4 7/8"-10 1/2" | 7 3/8" | 2" | 4 3/4" | 1/8" | 1/16" | __ | Steel | 0000000 | 000000 |
Setup Clamp Supports


Keep setup clamps from falling out of position when they are unclamped—the spring holds them up for quick workpiece insertion and removal. Slide the support over your T-slot bolt or stud and lock in place by tightening the set screw on the collar. Also known as spring lifters.