System of Measurement System of Measurement |
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Body Type Body Type |
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 | Threaded |
Body Material Body Material |
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Locking Type Locking Type |
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| Without Thread Locker | Thread Locker |
Drive Style Drive Style |
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Nose Type Nose Type |
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 | Ball |
Nose Material Nose Material |
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Extended Nose Force Extended Nose Force |
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Compressed Nose Force Compressed Nose Force |
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Body Finish Body Finish |
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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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Maximum Thread Locker Temperature Maximum ThreadLocker Temperature |
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Minimum Thread Locker Temperature Minimum ThreadLocker Temperature |
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Thread Locker Type Thread Locker Type |
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Hex-Drive Ball-Nose Spring Plungers
Install with a hex key for more torque than slotted ball-nose spring plungers. They have a ball nose that rolls to minimize wear and allow parts to move in and out of position. Made from 440C stainless steel, the nose is hard, wear resistant, and mildly chemical resistant.
Steel bodies are strong and wear resistant. They have a black-oxide finish to resist corrosion in dry environments.
18-8 stainless steel bodies are chemical resistant and may be mildly magnetic.
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.
Nose | Nose Force, lbs. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Body Lg. | Extended Lg. | Dia. | Extended | Compressed | Drive Size | Choose a Locking Type | Each | |
Black-Oxide Steel Body and 440C Stainless Steel Nose | |||||||||
| 6-40 | 0.35" | 0.023" | 0.078" | 0.5 | 1 | 0.050" | 0000000 | 00000 | |
| 8-32 | 0.445" | 0.025" | 0.094" | 0.5 | 1.3 | 1/16" | 0000000 | 0000 | |
| 10-32 | 0.57" | 0.025" | 0.094" | 1.5 | 3 | 5/64" | 0000000 | 0000 | |
| 1/4"-20 | 0.675" | 0.035" | 0.125" | 3 | 7 | 5/64" | 0000000 | 0000 | |
| 5/16"-18 | 0.72" | 0.04" | 0.156" | 4 | 9 | 3/32" | 0000000 | 0000 | |
| 3/8"-16 | 0.8" | 0.048" | 0.188" | 5 | 10 | 5/32" | 0000000 | 0000 | |
| 1/2"-13 | 1.05" | 0.072" | 0.281" | 6 | 12 | 7/32" | 0000000 | 0000 | |
| 5/8"-11 | 1.25" | 0.096" | 0.375" | 9 | 18 | 1/4" | 0000000 | 0000 | |
18-8 Stainless Steel Body and 440C Stainless Steel Nose | |||||||||
| 6-40 | 0.35" | 0.023" | 0.078" | 0.5 | 1 | 0.050" | 0000000 | 0000 | |
| 8-32 | 0.445" | 0.025" | 0.094" | 0.5 | 1.3 | 1/16" | 0000000 | 0000 | |
| 10-32 | 0.57" | 0.025" | 0.094" | 1.5 | 3 | 5/64" | 0000000 | 0000 | |
| 1/4"-20 | 0.675" | 0.035" | 0.125" | 3 | 7 | 5/64" | 0000000 | 0000 | |
| 5/16"-18 | 0.72" | 0.04" | 0.156" | 4 | 9 | 3/32" | 0000000 | 00000 | |
| 3/8"-16 | 0.8" | 0.048" | 0.188" | 5 | 10 | 5/32" | 0000000 | 0000 | |
| 1/2"-13 | 1.05" | 0.072" | 0.281" | 6 | 12 | 7/32" | 0000000 | 00000 | |
| 5/8"-11 | 1.25" | 0.096" | 0.375" | 9 | 18 | 1/4" | 0000000 | 00000 | |