Nose Material Nose Material |
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Body Material Body Material |
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Locking Type Locking Type |
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 |  |
| Thread Locker | Without Thread Locker |
Nose Diameter Nose Diameter |
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Body Length Body Length |
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Drive Style Drive Style |
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 |  |
| Slotted | No Drive |
 |  |
| External Hex | Hex |
Extended Nose Force Extended Nose Force |
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Extended Nose Length Extended Nose Length |
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Compressed Nose Force Compressed Nose Force |
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Body Finish Body Finish |
|---|
|
Thread Locker Type Thread Locker Type |
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|
Handle Material Handle Material |
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|
Long-Nose Spring Plungers
Install from the nose end without depressing the nose using a driver (sold separately). With a nose that is longer than a ball-nose, these provide a large bearing surface to handle side loads.
Steel is strong and wear resistant. Black-oxide steel bodies resist corrosion in dry environments.
18-8 stainless steel is chemical resistant.
Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.
Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.
Spring plungers with thread locker have a locking element that adds friction to resist loosening.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Spring Plungers | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Body | Nose | Nose Force, lbs. | Drivers | ||||||||
| Size | Length | Extended Lg. | Dia. | Min. Temp., °F | Max. Temp., °F | Extended | Compressed | Choose a Locking Type | Each | Each | ||
Black Oxide Steel Body and Acetal Plastic Nose | ||||||||||||
| 6-32 | 0.375" | 0.063" | 0.046" | __ | __ | 0.5 | 3.5 | 0000000 | 00000 | 0000000 | 00000 | |
| 6-32 | 0.531" | 0.063" | 0.045" | __ | __ | 0.5 | 1.5 | 0000000 | 0000 | 0000000 | 0000 | |
| 6-32 | 0.531" | 0.063" | 0.045" | __ | __ | 1.5 | 4.5 | 0000000 | 0000 | 0000000 | 0000 | |
| 8-32 | 0.625" | 0.094" | 0.07" | -40 | 190 | 0.7 | 2.3 | 0000000 | 0000 | 0000000 | 0000 | |
| 8-32 | 0.625" | 0.094" | 0.07" | -40 | 190 | 2.7 | 7.3 | 0000000 | 0000 | 0000000 | 0000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | -40 | 190 | 1.3 | 2.7 | 0000000 | 0000 | 0000000 | 0000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | -40 | 190 | 2.9 | 11.1 | 0000000 | 0000 | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | -40 | 190 | 1 | 4 | 0000000 | 0000 | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | -40 | 190 | 3 | 13 | 0000000 | 0000 | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | -40 | 190 | 1 | 4 | 0000000 | 0000 | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | -40 | 190 | 3 | 13 | 0000000 | 0000 | 0000000 | 0000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | -40 | 190 | 1.5 | 4.5 | 0000000 | 0000 | 0000000 | 0000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | -40 | 190 | 3 | 15 | 0000000 | 0000 | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.187" | -40 | 190 | 2.8 | 7.2 | 0000000 | 0000 | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.187" | -40 | 190 | 5.5 | 14.5 | 0000000 | 0000 | 0000000 | 0000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | -40 | 190 | 2.7 | 9.3 | 0000000 | 0000 | 0000000 | 0000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | -40 | 190 | 6.6 | 17.4 | 0000000 | 0000 | 0000000 | 0000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | -40 | 190 | 3.5 | 10.5 | 0000000 | 0000 | 0000000 | 00000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | -40 | 190 | 10.5 | 25.5 | 0000000 | 0000 | 0000000 | 00000 | |
18-8 Stainless Steel Body and Acetal Plastic Nose | ||||||||||||
| 8-32 | 0.625" | 0.094" | 0.07" | -40 | 190 | 0.7 | 2.3 | 00000000 | 0000 | 0000000 | 0000 | |
| 8-32 | 0.625" | 0.094" | 0.07" | -40 | 190 | 2.7 | 7.3 | 00000000 | 0000 | 0000000 | 0000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | -40 | 190 | 1.3 | 2.7 | 00000000 | 0000 | 0000000 | 0000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | -40 | 190 | 2.9 | 11.1 | 00000000 | 0000 | 0000000 | 0000 | |
| 1/4"-20 | 0.75" | 0.125" | 0.118" | -40 | 190 | 2 | 9 | 00000000 | 0000 | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | -40 | 190 | 1 | 4 | 00000000 | 0000 | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | -40 | 190 | 3 | 13 | 00000000 | 0000 | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | -40 | 190 | 1 | 4 | 00000000 | 0000 | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | -40 | 190 | 3 | 13 | 00000000 | 0000 | 0000000 | 0000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | -40 | 190 | 1.5 | 4.5 | 00000000 | 0000 | 0000000 | 0000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | -40 | 190 | 3 | 15 | 00000000 | 0000 | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.187" | -40 | 190 | 2.8 | 7.2 | 00000000 | 0000 | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.187" | -40 | 190 | 5.5 | 14.5 | 00000000 | 0000 | 0000000 | 0000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | -40 | 190 | 2.7 | 9.3 | 00000000 | 0000 | 0000000 | 0000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | -40 | 190 | 6.6 | 17.4 | 00000000 | 0000 | 0000000 | 0000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | -40 | 190 | 3.5 | 10.5 | 00000000 | 00000 | 0000000 | 00000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | -40 | 190 | 10.5 | 25.5 | 00000000 | 00000 | 0000000 | 00000 | |
Spring Plungers | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Body | Nose | Nose Force, lbs. | Drivers | ||||||||
| Size | Thread Pitch | Length | Extended Lg. | Diameter | Temperature Range | Extended | Compressed | Choose a Locking Type | Each | Each | ||
Acetal Plastic Nose | ||||||||||||
| M4 | 0.7 mm | 15mm | 1.5mm | 1.5mm | -20 to 210° F | 1 | 3.6 | 0000000 | 00000 | 0000000 | 00000 | |
| M4 | 0.7 mm | 15mm | 1.5mm | 1.5mm | -20 to 210° F | 1 | 3.6 | 0000000 | 00000 | 0000000 | 0000 | |
| M5 | 0.8 mm | 18mm | 2.3mm | 2.4mm | -20 to 210° F | 1.3 | 4.3 | 0000000 | 0000 | 0000000 | 0000 | |
| M5 | 0.8 mm | 18mm | 2.3mm | 2.4mm | -20 to 210° F | 1.3 | 4.3 | 0000000 | 00000 | 0000000 | 0000 | |
| M6 | 1 mm | 20mm | 2.5mm | 2.7mm | -40 to 190° F | 1.6 | 4.5 | 0000000 | 0000 | 0000000 | 0000 | |
| M6 | 1 mm | 20mm | 2.5mm | 2.7mm | -40 to 190° F | 1.6 | 4.5 | 0000000 | 0000 | 0000000 | 0000 | |
| M6 | 1 mm | 20mm | 2.5mm | 2.7mm | -40 to 190° F | 4 | 11.2 | 0000000 | 0000 | 0000000 | 0000 | |
| M6 | 1 mm | 20mm | 2.5mm | 2.7mm | -40 to 190° F | 4 | 11.2 | 0000000 | 0000 | 0000000 | 0000 | |
| M6 | 1 mm | 20mm | 2.5mm | 2.7mm | -20 to 210° F | 1.3 | 4.3 | 0000000 | 00000 | 0000000 | 0000 | |
| M6 | 1 mm | 20mm | 2.5mm | 2.7mm | -20 to 210° F | 1.3 | 4.3 | 0000000 | 0000 | 0000000 | 0000 | |
| M8 | 1.25 mm | 22mm | 3mm | 3.5mm | -40 to 190° F | 2 | 7.9 | 0000000 | 0000 | 0000000 | 0000 | |
| M8 | 1.25 mm | 22mm | 3mm | 3.5mm | -40 to 190° F | 2 | 7.9 | 0000000 | 0000 | 0000000 | 0000 | |
| M8 | 1.25 mm | 22mm | 3mm | 3.5mm | -40 to 190° F | 5.6 | 15.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M8 | 1.25 mm | 22mm | 3mm | 3.5mm | -40 to 190° F | 5.6 | 15.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M8 | 1.25 mm | 22mm | 3mm | 3.5mm | -20 to 210° F | 2.2 | 8.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M8 | 1.25 mm | 22mm | 3mm | 3.5mm | -20 to 210° F | 2.2 | 8.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M10 | 1.5 mm | 22mm | 3mm | 4mm | -40 to 190° F | 2 | 7.9 | 0000000 | 0000 | 0000000 | 0000 | |
| M10 | 1.5 mm | 22mm | 3mm | 4mm | -40 to 190° F | 2 | 7.9 | 0000000 | 0000 | 0000000 | 0000 | |
| M10 | 1.5 mm | 22mm | 3mm | 4mm | -40 to 190° F | 5.6 | 15.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M10 | 1.5 mm | 22mm | 3mm | 4mm | -20 to 210° F | 2.2 | 8.7 | 0000000 | 00000 | 0000000 | 0000 | |
| M10 | 1.5 mm | 22mm | 3mm | 4mm | -20 to 210° F | 2.2 | 8.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M12 | 1.75 mm | 28mm | 4mm | 6mm | -40 to 190° F | 2.3 | 12.3 | 0000000 | 0000 | 0000000 | 0000 | |
| M12 | 1.75 mm | 28mm | 4mm | 6mm | -40 to 190° F | 10 | 24.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M12 | 1.75 mm | 28mm | 4mm | 6mm | -40 to 190° F | 10 | 24.7 | 0000000 | 0000 | 0000000 | 0000 | |
| M12 | 1.75 mm | 28mm | 4mm | 6mm | -20 to 210° F | 2.7 | 11.9 | 0000000 | 00000 | 0000000 | 0000 | |
| M12 | 1.75 mm | 28mm | 4mm | 6mm | -20 to 210° F | 2.7 | 11.9 | 0000000 | 00000 | 0000000 | 0000 | |
| M16 | 2 mm | 32mm | 5mm | 7.5mm | -20 to 210° F | 10 | 22.5 | 0000000 | 00000 | 0000000 | 00000 | |
| M16 | 2 mm | 32mm | 5mm | 7.5mm | -20 to 210° F | 10 | 22.5 | 0000000 | 00000 | 0000000 | 00000 | |
| M16 | 2 mm | 38.1mm | 5mm | 7.8mm | -40 to 190° F | 10.5 | 16.9 | 0000000 | 00000 | 0000000 | 00000 | |
| M16 | 2 mm | 38.1mm | 5mm | 7.8mm | -40 to 190° F | 10.5 | 16.9 | 0000000 | 0000 | 0000000 | 00000 | |
Slotted Long-Nose Spring Plungers
Slotted on both ends for installation with a screwdriver. With a nose that is longer than a ball-nose, these provide a large bearing surface to handle side loads.
Steel is strong and wear resistant.
Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.
Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.
Spring plungers with thread locker have a locking element that adds friction to resist loosening.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Hex-Drive Long-Nose Spring Plungers
Install with a hex key for more torque than slotted long-nose spring plungers. These spring plungers have a nose that is longer than ball-nose spring plungers to provide a large bearing surface and handle side loads.
Steel is strong and wear resistant. Black-oxide steel bodies resist corrosion in dry environments.
18-8 stainless steel is chemical resistant and may be mildly magnetic.
Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.
Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.
Spring plungers with thread locker have a nylon locking element that adds friction to resist loosening.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Nose | Nose Force, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Body Lg. | Extended Lg. | Dia. | Temp. Range, °F | Extended | Compressed | Drive Size | Choose a Locking Type | Each | |
Black-Oxide Steel Body and Acetal Plastic Nose | ||||||||||
| 6-32 | 0.531" | 0.063" | 0.045" | -40° to 190° | 0.5 | 1.5 | 0.050" | 0000000 | 00000 | |
| 6-32 | 0.531" | 0.063" | 0.045" | -40° to 190° | 1 | 1.6 | 0.050" | 0000000 | 0000 | |
| 6-32 | 0.531" | 0.063" | 0.045" | -40° to 190° | 1.5 | 4.5 | 0.050" | 0000000 | 0000 | |
| 8-32 | 0.625" | 0.094" | 0.07" | Not Rated | 0.7 | 2.3 | 5/64" | 0000000 | 00000 | |
| 8-32 | 0.625" | 0.094" | 0.07" | Not Rated | 2.7 | 7.3 | 5/64" | 0000000 | 00000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | Not Rated | 1.3 | 2.7 | 3/32" | 0000000 | 0000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | Not Rated | 2.9 | 11.1 | 3/32" | 0000000 | 0000 | |
| 1/4"-20 | 0.75" | 0.125" | 0.118" | -40° to 190° | 2 | 9 | 5/64" | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | Not Rated | 1 | 4 | 1/8" | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | Not Rated | 3 | 13 | 1/8" | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | Not Rated | 1 | 4 | 1/8" | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | Not Rated | 3 | 13 | 1/8" | 0000000 | 00000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | Not Rated | 1.5 | 4.5 | 5/32" | 0000000 | 0000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | Not Rated | 3 | 15 | 5/32" | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.186" | Not Rated | 2.8 | 7.2 | 3/16" | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.186" | Not Rated | 5.5 | 14.5 | 3/16" | 0000000 | 0000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | Not Rated | 2.7 | 9.3 | 1/4" | 0000000 | 0000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | Not Rated | 6.6 | 17.4 | 1/4" | 0000000 | 0000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | Not Rated | 3.5 | 10.5 | 5/16" | 0000000 | 0000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | Not Rated | 10.5 | 25.5 | 5/16" | 0000000 | 0000 | |
18-8 Stainless Steel Body and Acetal Plastic Nose | ||||||||||
| 6-32 | 0.531" | 0.063" | 0.045" | -40° to 190° | 1 | 1.6 | 0.050" | 0000000 | 0000 | |
| 6-32 | 0.531" | 0.063" | 0.045" | Not Rated | 0.5 | 1.5 | 0.050" | 0000000 | 0000 | |
| 6-32 | 0.531" | 0.063" | 0.045" | Not Rated | 1.5 | 4.5 | 0.050" | 0000000 | 00000 | |
| 8-32 | 0.625" | 0.094" | 0.07" | Not Rated | 0.7 | 2.3 | 5/64" | 0000000 | 0000 | |
| 8-32 | 0.625" | 0.094" | 0.07" | Not Rated | 2.7 | 7.3 | 5/64" | 0000000 | 00000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | Not Rated | 1.3 | 2.7 | 3/32" | 0000000 | 00000 | |
| 10-32 | 0.75" | 0.125" | 0.092" | Not Rated | 2.9 | 11.1 | 3/32" | 0000000 | 0000 | |
| 1/4"-20 | 0.75" | 0.125" | 0.118" | -40° to 190° | 2 | 9 | 5/64" | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | Not Rated | 1 | 4 | 1/8" | 0000000 | 0000 | |
| 1/4"-20 | 1" | 0.188" | 0.118" | Not Rated | 3 | 13 | 1/8" | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | Not Rated | 1 | 4 | 1/8" | 0000000 | 0000 | |
| 1/4"-28 | 1" | 0.188" | 0.118" | Not Rated | 3 | 13 | 1/8" | 0000000 | 0000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | Not Rated | 1.5 | 4.5 | 5/32" | 0000000 | 0000 | |
| 5/16"-18 | 1" | 0.188" | 0.135" | Not Rated | 3 | 15 | 5/32" | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.186" | Not Rated | 2.8 | 7.2 | 3/16" | 0000000 | 0000 | |
| 3/8"-16 | 1.125" | 0.188" | 0.186" | Not Rated | 5.5 | 14.5 | 3/16" | 0000000 | 0000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | Not Rated | 2.7 | 9.3 | 1/4" | 0000000 | 00000 | |
| 1/2"-13 | 1.25" | 0.25" | 0.248" | Not Rated | 6.6 | 17.4 | 1/4" | 0000000 | 00000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | Not Rated | 3.5 | 10.5 | 5/16" | 0000000 | 00000 | |
| 5/8"-11 | 1.5" | 0.313" | 0.31" | Not Rated | 10.5 | 25.5 | 5/16" | 0000000 | 00000 | |
Press-Fit Long-Nose Spring Plungers
Press these spring plungers into unthreaded holes in soft material such as wood, plastic, and aluminum. They have a nose that is longer than ball-nose spring plungers to provide a large bearing surface and handle side loads. A flange keeps the plunger from being pushed through a hole when the ball is depressed. Drill a slightly smaller hole for a snug fit.
Steel is strong and wear resistant. Black-oxide steel bodies resist corrosion in dry environments.
18-8 stainless steel is chemical resistant and may be mildly magnetic.
Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Body | Nose | Flange | Nose Force, lbs. | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Lg. | Extended Lg. | Dia. | Temp. Range, °F | Thick. | Dia. | Extended | Compressed | Each | |
Black-Oxide Steel Body | ||||||||||
Acetal Plastic Nose | ||||||||||
| 0.19" | 0.441" | 0.094" | 0.121" | -40° to 190° | 0.04" | 0.25" | 0.8 | 2 | 0000000 | 00000 |
| 0.19" | 0.441" | 0.094" | 0.121" | -40° to 190° | 0.04" | 0.25" | 1.5 | 4.5 | 0000000 | 0000 |
| 0.25" | 0.521" | 0.125" | 0.168" | -40° to 190° | 0.06" | 0.312" | 1.3 | 3 | 0000000 | 0000 |
| 0.25" | 0.521" | 0.125" | 0.168" | -40° to 190° | 0.06" | 0.312" | 2.5 | 6 | 0000000 | 0000 |
| 0.38" | 0.786" | 0.187" | 0.234" | -40° to 190° | 0.1" | 0.5" | 2.5 | 7 | 0000000 | 0000 |
| 0.38" | 0.786" | 0.187" | 0.234" | -40° to 190° | 0.1" | 0.5" | 5 | 14 | 0000000 | 0000 |
| 0.5" | 1.1" | 0.25" | 0.332" | -40° to 190° | 0.13" | 0.688" | 4 | 9 | 0000000 | 0000 |
| 0.5" | 1.1" | 0.25" | 0.332" | -40° to 190° | 0.13" | 0.688" | 8 | 18 | 0000000 | 0000 |
18-8 Stainless Steel Body | ||||||||||
Acetal Plastic Nose | ||||||||||
| 0.19" | 0.441" | 0.094" | 0.121" | -40° to 190° | 0.04" | 0.25" | 0.8 | 2 | 0000000 | 0000 |
| 0.19" | 0.441" | 0.094" | 0.121" | -40° to 190° | 0.04" | 0.25" | 1.5 | 4.5 | 0000000 | 0000 |
| 0.25" | 0.521" | 0.125" | 0.168" | -40° to 190° | 0.06" | 0.312" | 1.3 | 3 | 0000000 | 0000 |
| 0.25" | 0.521" | 0.125" | 0.168" | -40° to 190° | 0.06" | 0.312" | 2.5 | 6 | 0000000 | 0000 |
| 0.38" | 0.786" | 0.187" | 0.234" | -40° to 190° | 0.1" | 0.5" | 2.5 | 7 | 0000000 | 0000 |
| 0.38" | 0.786" | 0.187" | 0.234" | -40° to 190° | 0.1" | 0.5" | 5 | 14 | 0000000 | 0000 |
| 0.5" | 1.1" | 0.25" | 0.332" | -40° to 190° | 0.13" | 0.688" | 4 | 9 | 0000000 | 0000 |
| 0.5" | 1.1" | 0.25" | 0.332" | -40° to 190° | 0.13" | 0.688" | 8 | 18 | 0000000 | 0000 |
Twist-to-Lock L-Handle Retractable Spring Plungers
 |  With Thread Locker |
 Without Thread Locker |
Lock the nose into the retracted position by pulling the handle and rotating it 90°. These spring plungers have a long nose that provides a large bearing surface to handle side loads.
Steel is strong and wear resistant. Zinc-plated steel bodies resist corrosion in wet environments.
18-8 stainless steel is chemical resistant.
Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.
Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.
Spring plungers with thread locker have a locking patch that adds friction to resist loosening.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Thread | Nose | Handle | Nose Force, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Lg. | Body Lg. | Extended Lg. | Dia. | Temp. Range, °F | Lg. | Material | Extended | Compressed | Choose a Locking Type | Each | |
Zinc-Plated Steel Body and Acetal Plastic Nose | ||||||||||||
| 1/4"-20 | 0.75" | 1.25" | 0.375" | 0.156" | -30° to 190° | 0.625" | 18-8 Stainless Steel | 0.5 | 2.5 | 0000000 | 000000 | |
| 3/8"-16 | 1.313" | 2" | 0.563" | 1/4" | -30° to 190° | 0.938" | 18-8 Stainless Steel | 0.8 | 3.8 | 0000000 | 00000 | |
| 1/2"-13 | 1.375" | 2.125" | 0.75" | 0.312" | -30° to 190° | 1.25" | 18-8 Stainless Steel | 1 | 5 | 0000000 | 00000 | |
| 5/8"-11 | 1.938" | 3" | 1" | 3/8" | -30° to 190° | 1.313" | 18-8 Stainless Steel | 1 | 5 | 0000000 | 00000 | |
18-8 Stainless Steel Body and Acetal Plastic Nose | ||||||||||||
| 1/4"-20 | 0.75" | 1.25" | 0.375" | 0.156" | -30° to 190° | 0.625" | 18-8 Stainless Steel | 0.5 | 2.5 | 0000000 | 00000 | |
| 3/8"-16 | 1.313" | 2" | 0.563" | 1/4" | -30° to 190° | 0.938" | 18-8 Stainless Steel | 0.8 | 3.8 | 0000000 | 00000 | |
| 1/2"-13 | 1.375" | 2.125" | 0.75" | 0.312" | -30° to 190° | 1.25" | 18-8 Stainless Steel | 1 | 5 | 0000000 | 00000 | |
| 5/8"-11 | 1.938" | 3" | 1" | 3/8" | -30° to 190° | 1.313" | 18-8 Stainless Steel | 1 | 5 | 0000000 | 00000 | |
Twist-to-Lock Knob-Style Retractable Spring Plungers
 Knurled Knob | With Thread Locker |
Without Thread Locker |
Lock the nose into the retracted position by pulling the knob and rotating it 90°. These spring plungers have a long nose that provides a large bearing surface to handle side loads.
Knurled knob spring plungers provide a slip-resistant surface for controlled adjustment.
Steel is strong and wear resistant.
18-8 stainless steel is chemical resistant.
Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.
Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.
Spring plungers with thread locker have a locking patch that adds friction to resist loosening.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Thread | Nose | Nose Force, lbs. | Handle | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Lg. | Body Lg. | Extended Lg. | Dia. | Temp. Range, °F | Extended | Compressed | Dia. | Texture | Choose a Locking Type | Each | |
Steel Body and Acetal Plastic Nose | ||||||||||||
| 1/4"-20 | 0.5" | 0.875" | 0.125" | 0.144" | -30° to 190° | 1 | 5 | 1/2" | Knurled | 0000000 | 000000 | |
| 5/16"-18 | 0.625" | 1.09" | 0.188" | 0.179" | -30° to 190° | 1.5 | 6 | 5/8" | Knurled | 0000000 | 00000 | |
| 3/8"-16 | 0.75" | 1.28" | 0.218" | 0.216" | -30° to 190° | 1.5 | 8 | 3/4" | Knurled | 0000000 | 00000 | |
| 1/2"-13 | 0.875" | 1.5" | 0.25" | 0.31" | -30° to 190° | 2.5 | 10 | 1" | Knurled | 0000000 | 00000 | |
| 5/8"-11 | 1" | 1.72" | 0.313" | 0.373" | -30° to 190° | 5 | 10 | 1 1/8" | Knurled | 0000000 | 00000 | |
18-8 Stainless Steel Body and Acetal Plastic Nose | ||||||||||||
| 1/4"-20 | 0.5" | 0.875" | 0.125" | 0.144" | -30° to 190° | 1 | 5 | 1/2" | Knurled | 0000000 | 00000 | |
| 5/16"-18 | 0.625" | 1.09" | 0.188" | 0.179" | -30° to 190° | 1.5 | 6 | 5/8" | Knurled | 0000000 | 00000 | |
| 3/8"-16 | 0.75" | 1.28" | 0.218" | 0.216" | -30° to 190° | 1.5 | 8 | 3/4" | Knurled | 0000000 | 00000 | |
| 1/2"-13 | 0.875" | 1.5" | 0.25" | 0.31" | -30° to 190° | 2.5 | 10 | 1" | Knurled | 0000000 | 00000 | |
| 5/8"-11 | 1" | 1.72" | 0.313" | 0.373" | -30° to 190° | 5 | 10 | 1 1/8" | Knurled | 0000000 | 00000 | |
Slotted Ball-Nose Spring Plungers
Slotted on ends for installation with a screwdriver. The ball nose rolls to minimize wear and allow parts to move in and out of position.
440C stainless steel is hard, wear resistant, and mildly chemical resistant.
Plastic is chemical resistant and lightweight; nylon noses are extra soft to minimize marring soft surfaces such as aluminum.
Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Nose | Nose Force, lbs. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Body Lg. | Extended Lg. | Dia. | Temp. Range, °F | Extended | Compressed | Locking Type | Each | |
Acetal Plastic Body and 440C Stainless Steel Nose | |||||||||
| 1/4"-20 | 0.531" | 0.03" | 0.125" | __ | 1 | 2.5 | Without Thread Locker | 00000000 | 00000 |
| 1/4"-20 | 0.531" | 0.03" | 0.125" | __ | 2 | 5 | Without Thread Locker | 00000000 | 0000 |
| 5/16"-18 | 0.578" | 0.039" | 0.156" | __ | 2 | 4.5 | Without Thread Locker | 00000000 | 0000 |
| 5/16"-18 | 0.578" | 0.039" | 0.156" | __ | 4 | 9 | Without Thread Locker | 00000000 | 0000 |
| 3/8"-16 | 0.625" | 0.053" | 0.187" | __ | 2.5 | 5 | Without Thread Locker | 00000000 | 0000 |
| 3/8"-16 | 0.625" | 0.053" | 0.187" | __ | 5 | 10 | Without Thread Locker | 00000000 | 0000 |
Acetal Plastic Body and Nylon Plastic Nose | |||||||||
| 1/4"-20 | 0.531" | 0.03" | 0.125" | -20° to 180° | 1 | 2.5 | Without Thread Locker | 00000000 | 0000 |
| 1/4"-20 | 0.531" | 0.03" | 0.125" | -20° to 180° | 2 | 5 | Without Thread Locker | 00000000 | 0000 |
| 5/16"-18 | 0.578" | 0.039" | 0.156" | -20° to 180° | 2 | 4.5 | Without Thread Locker | 00000000 | 0000 |
| 5/16"-18 | 0.578" | 0.039" | 0.156" | -20° to 180° | 4 | 9 | Without Thread Locker | 00000000 | 0000 |
| 3/8"-16 | 0.625" | 0.053" | 0.187" | -20° to 180° | 2.5 | 5 | Without Thread Locker | 00000000 | 0000 |
| 3/8"-16 | 0.625" | 0.053" | 0.187" | -20° to 180° | 5 | 10 | Without Thread Locker | 00000000 | 0000 |
Press-Fit Ball-Nose Spring Plungers
Designed with a flange to keep the plunger from being pushed through a hole when the ball is depressed. These spring plungers have a tapered end and smooth body to make them easy to press into unthreaded holes in soft material such as wood, plastic, and aluminum. Drill a slightly smaller hole for a snug fit.
Steel is strong and wear resistant.
Stainless steel is chemical resistant and may be mildly magnetic.
Plastic is chemical resistant and lightweight; plastic noses are extra soft to minimize marring soft surfaces such as aluminum.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.
For technical drawings and 3-D models, click on a part number.
Body | Nose | Flange | Nose Force, lbs. | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Lg. | Extended Lg. | Dia. | Temp. Range, °F | Dia. | Thick. | Extended | Compressed | Each | |
Steel Body | ||||||||||
Acetal Plastic Nose | ||||||||||
| 0.13" | 0.252" | 0.035" | 0.093" | __ | 0.187" | 0.032" | 2 | 5 | 000000 | 00000 |
| 0.16" | 0.33" | 0.046" | 1/8" | __ | 0.215" | 0.035" | 1.5 | 3.5 | 0000000 | 0000 |
| 0.16" | 0.33" | 0.046" | 1/8" | __ | 0.215" | 0.035" | 3 | 7.5 | 0000000 | 0000 |
| 0.19" | 0.405" | 0.058" | 0.156" | __ | 0.25" | 0.035" | 4 | 10 | 0000000 | 0000 |
| 0.25" | 0.481" | 0.07" | 0.187" | __ | 0.312" | 0.044" | 6 | 13 | 0000000 | 0000 |
| 0.31" | 0.643" | 0.09" | 1/4" | __ | 0.375" | 0.045" | 8 | 16 | 0000000 | 0000 |
| 0.38" | 0.785" | 0.11" | 0.312" | __ | 0.5" | 0.078" | 10 | 18 | 0000000 | 0000 |
| 0.5" | 1.13" | 0.161" | 0.437" | __ | 0.688" | 0.088" | 12 | 23 | 0000000 | 0000 |
18-8 Stainless Steel Body | ||||||||||
Acetal Plastic Nose | ||||||||||
| 0.13" | 0.252" | 0.035" | 0.093" | -30° to 190° | 0.187" | 0.032" | 2 | 5 | 0000000 | 0000 |
| 0.16" | 0.33" | 0.046" | 1/8" | __ | 0.215" | 0.035" | 0.8 | 2 | 0000000 | 0000 |
| 0.16" | 0.33" | 0.046" | 1/8" | __ | 0.215" | 0.035" | 1.5 | 3.5 | 000000 | 0000 |
| 0.16" | 0.33" | 0.046" | 1/8" | __ | 0.215" | 0.035" | 3 | 7.5 | 0000000 | 0000 |
| 0.19" | 0.405" | 0.058" | 0.156" | -30° to 190° | 0.25" | 0.035" | 4 | 10 | 0000000 | 0000 |
| 0.25" | 0.481" | 0.07" | 0.187" | -30° to 190° | 0.312" | 0.044" | 6 | 13 | 0000000 | 0000 |
| 0.31" | 0.643" | 0.09" | 1/4" | -30° to 190° | 0.375" | 0.045" | 8 | 16 | 0000000 | 0000 |
| 0.38" | 0.785" | 0.11" | 0.312" | -30° to 190° | 0.5" | 0.078" | 10 | 18 | 0000000 | 0000 |
| 0.5" | 1.13" | 0.161" | 0.437" | -30° to 190° | 0.688" | 0.088" | 12 | 23 | 0000000 | 0000 |