Head Material Head Material |
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Maximum Spring Force Maximum Spring Force |
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Mount Type Mount Type |
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Body Length Body Length |
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Head Length Head Length |
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Minimum Spring Force Minimum Spring Force |
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Spring-Loaded Guide Pins
As the workpiece pushes against the pin head in one direction, the internal spring pushes back to hold it in place for clamping. Press into a drilled hole using the installation tool (sold separately). Also known as spring locating pins and side-thrust pins.
Plastic-head pins won't mar soft metal and polished surfaces.
For technical drawings and 3-D models, click on a part number.
Guide Pins | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Body | Head | Installation Tools | ||||||||||
| Dia. | Lg. | Dia. | Lg. | Max. Head Movement | Min. Spring Force, lbs. | Max. Spring Force, lbs. | Body Dia. Tolerance | Body Material | Each | Each | ||
Zinc-Plated Steel Head | ||||||||||||
| 0.25" | 0.28" | 0.12" | 0.16" | 0.04" | 2.3 | 2.5 | 0" to 0.0009" | Aluminum | 0000000 | 00000 | 0000000 | 000000 |
| 0.25" | 0.28" | 0.12" | 0.16" | 0.04" | 4.5 | 5 | 0" to 0.0009" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.25" | 0.28" | 0.12" | 0.16" | 0.04" | Not Rated | 9 | -0.002" to 0.002" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.43" | 0.2" | 0.24" | 0.06" | 4.5 | 5 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.43" | 0.2" | 0.24" | 0.06" | 11.3 | 12.4 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.43" | 0.2" | 0.26" | 0.06" | Not Rated | 21.5 | -0.002" to 0.002" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.43" | 0.24" | 0.42" | 0.08" | Not Rated | 22.5 | -0.002" to 0.002" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.43" | 0.24" | 0.43" | 0.08" | 9 | 9.9 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.43" | 0.24" | 0.43" | 0.08" | 16.9 | 18.6 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.5" | 0.51" | 0.31" | 0.53" | 0.1" | 11.3 | 12.4 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.5" | 0.51" | 0.31" | 0.53" | 0.1" | 22.5 | 24.8 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.5" | 0.53" | 0.31" | 0.54" | 0.09" | Not Rated | 34 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.63" | 0.67" | 0.39" | 0.64" | 0.13" | 22.5 | 24.8 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.63" | 0.67" | 0.39" | 0.64" | 0.13" | 45 | 49.5 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.63" | 0.67" | 0.39" | 0.66" | 0.12" | Not Rated | 34 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
Acetal Plastic Head | ||||||||||||
| 0.25" | 0.28" | 0.12" | 0.16" | 0.04" | 2.3 | 2.5 | 0" to 0.0009" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.38" | 0.24" | 0.41" | 0.08" | 13.5 | 14.8 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.44" | 0.43" | 0.24" | 0.43" | 0.08" | 9 | 9.9 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.5" | 0.51" | 0.31" | 0.53" | 0.1" | 11.3 | 12.4 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.63" | 0.67" | 0.39" | 0.64" | 0.13" | 22.5 | 24.8 | 0" to 0.0011" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
Guide Pins | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Body | Head | Installation Tools | ||||||||||
| Dia., mm | Lg., mm | Dia., mm | Lg., mm | Max. Head Movement, mm | Min. Spring Force, lbs. | Max. Spring Force, lbs. | Body Dia. Tolerance, mm | Body Material | Each | Each | ||
Zinc-Plated Steel Head | ||||||||||||
| 6 | 7 | 3 | 4 | 1 | 2.3 | 2.5 | 0 to 0.0221 | Aluminum | 0000000 | 00000 | 0000000 | 000000 |
| 6 | 7 | 3 | 4 | 1 | 4.5 | 5 | 0 to 0.0221 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 6 | 7 | 3 | 4 | 1 | 9 | 9.9 | 0 to 0.0221 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 5 | 6.7 | 1.6 | 4.5 | 5 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 5 | 6.7 | 1.6 | 11.3 | 12.4 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 5 | 6.7 | 1.6 | 22.5 | 24.8 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 6 | 10.7 | 2 | 9 | 9.9 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 6 | 10.7 | 2 | 16.9 | 18.6 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 6 | 10.7 | 2 | 33.8 | 37.1 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 12 | 13 | 8 | 13.6 | 2.6 | Not Rated | 33 | -0.01 to 0.01 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 12 | 13 | 8 | 13.9 | 2.6 | 11.3 | 12.4 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 12 | 13 | 8 | 13.9 | 2.6 | 22.5 | 24.8 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 16 | 17 | 10 | 16.7 | 3.2 | 22.5 | 24.8 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 16 | 17 | 10 | 16.7 | 3.2 | Not Rated | 33 | -0.01 to 0.01 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 16 | 17 | 10 | 16.7 | 3.2 | 67.5 | 74.3 | 0 to 0.0269 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
Acetal Plastic Head | ||||||||||||
| 6 | 7 | 3 | 4 | 1 | 2.3 | 2.5 | 0 to 0.022 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 5 | 6.7 | 1.6 | 4.5 | 5 | 0 to 0.027 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 11 | 6 | 10.7 | 2 | 9 | 9.9 | 0 to 0.027 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 12 | 13 | 8 | 13.9 | 2.6 | 11.3 | 12.4 | 0 to 0.027 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 16 | 17 | 10 | 16.7 | 3.2 | 22.5 | 24.8 | 0 to 0.027 | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
Sealed Spring-Loaded Guide Pins
Sealed at the top to prevent debris from getting inside and making them seize up, these guide pins are a good choice for machining fixtures. As the workpiece pushes against the pin head in one direction, the internal spring pushes back to hold it in place for clamping. Press into a drilled hole using the installation tool (sold separately).
Guide Pins | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Body | Head | Installation Tools | |||||||||
| Dia. | Lg. | Dia. | Lg. | Max. Head Movement | Max. Spring Force, lbs. | Body Dia. Tolerance | Body Material | Each | Each | ||
Stainless Steel Head | |||||||||||
| 0.25" | 0.3" | 0.12" | 0.15" | 0.02" | 4.4 | -0.0004" to 0.0004" | Aluminum | 0000000 | 00000 | 0000000 | 000000 |
| 0.44" | 0.37" | 0.24" | 0.41" | 0.04" | 6.7 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.5" | 0.55" | 0.31" | 0.52" | 0.05" | 11.1 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
| 0.63" | 0.68" | 0.39" | 0.68" | 0.06" | 18 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 | 0000000 | 00000 |
Guide Pins | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Body | Head | Installation Tools | |||||||||
| Dia., mm | Lg., mm | Dia., mm | Lg., mm | Max. Head Movement, mm | Max. Spring Force, lbs. | Body Dia. Tolerance, mm | Body Material | Each | Each | ||
Stainless Steel Head | |||||||||||
| 6 | 7 | 3 | 3.7 | 0.4 | 4.5 | -0.15 to 0.15 | Plastic | 0000000 | 00000 | 0000000 | 000000 |
| 8 | 9 | 4 | 5.2 | 0.6 | 6.5 | -0.15 to 0.15 | Plastic | 0000000 | 0000 | 0000000 | 00000 |
| 10 | 9 | 6 | 10.3 | 1 | 6.5 | -0.15 to 0.15 | Plastic | 0000000 | 0000 | 0000000 | 00000 |
| 12 | 13 | 8 | 13.3 | 1.2 | 11 | -0.25 to 0.25 | Plastic | 0000000 | 0000 | 0000000 | 00000 |
| 16 | 16 | 10 | 16.9 | 1.6 | 18 | -0.15 to 0.15 | Plastic | 0000000 | 0000 | 0000000 | 00000 |
Installation Tools for Spring-Loaded Guide Pins
Use these tools for easier guide pin installation.
Tools for press-fit pins slip over the head of the pin to let you press or hammer it into place.
Tools for threaded pins slot into notches on the side of the pin body to help you twist it into place.
Create-Your-Own Spring-Loaded Guide Pins
Thread in a screw, handle, or other part to create the right size and shape guide pin for your application. As the workpiece pushes against the pin head in one direction, the internal spring pushes back to hold it in place for clamping. Press into a drilled hole using the installation tool (sold separately).
Body | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Lg. | Max. Spring Force, lbs. | Body Dia. Tolerance | Body Material | Each | |
| 8-32 | 0.44" | 0.43" | 4.5 | -0.002" to 0.002" | Aluminum | 0000000 | 00000 |
| 8-32 | 0.44" | 0.43" | 9 | -0.002" to 0.002" | Aluminum | 0000000 | 0000 |
| 8-32 | 0.44" | 0.43" | 16.9 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 |
| 1/4"-20 | 0.63" | 0.67" | 22.5 | -0.002" to 0.002" | Aluminum | 0000000 | 0000 |
| 1/4"-20 | 0.63" | 0.67" | 34 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 |
| 1/4"-20 | 0.63" | 0.67" | 45 | -0.0004" to 0.0004" | Aluminum | 0000000 | 0000 |
Threaded Spring-Loaded Guide Pins
Threading makes these guide pins easier to remove and replace than press fit, so they're useful for high-wear applications. A sealed top prevents debris from getting inside and making them seize up. As the workpiece pushes against the pin head in one direction, the internal spring pushes back to hold it in place for clamping.
Guide Pins | |||||||||||||
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Thread | Body | Head | Installation Tools | ||||||||||
| Size | Pitch, mm | Dia., mm | Lg., mm | Dia., mm | Lg., mm | Max. Head Movement, mm | Max. Spring Force, lbs. | Body Dia. Tolerance, mm | Body Material | Each | Each | ||
Zinc-Plated Steel Head | |||||||||||||
| M12 | 1.75 | 5 | 11.5 | 5 | 6 | 0.8 | 22 | -0.15 to 0.15 | Steel | 0000000 | 00000 | 0000000 | 000000 |
| M12 | 1.75 | 10 | 11.5 | 5 | 6 | 0.8 | 4.5 | -0.15 to 0.15 | Steel | 0000000 | 0000 | 0000000 | 00000 |
| M12 | 1.75 | 10 | 11.5 | 6 | 10 | 1 | 9 | -0.15 to 0.15 | Steel | 0000000 | 0000 | 0000000 | 00000 |
| M12 | 1.75 | 10 | 11.5 | 6 | 10 | 1 | 16 | -0.15 to 0.15 | Steel | 0000000 | 0000 | 0000000 | 00000 |
| M18 | 1.5 | 16 | 18 | 10 | 16 | 1.6 | 33 | -0.15 to 0.15 | Steel | 0000000 | 0000 | 0000000 | 00000 |
| M18 | 1.5 | 16 | 18 | 10 | 16 | 1.6 | 45 | -0.15 to 0.15 | Steel | 0000000 | 0000 | 0000000 | 00000 |