Spring Plungers-Steel
This standard-length, threaded type has a long stroke and long plunger bearing length for smooth operation. It has a steel body and a hardened steel plunger nose. Made in USA.
Install and/or adjust from either end. When using the slot at the plunger end to install, use a Plunger Wrench instead of a screwdriver to avoid over-compressing the spring. A thread-locking element holds the unit securely in place after installation.
Application Information
Spring plungers can be used to lift parts slightly after machining, for easier unloading.
Internal View
Nose Extended

Nose Retracted
Material
Item | Material | Heat Treat | Finish | DFARS | RoHS |
Body | 1215 steel, black oxide Finish (Metric sizes zinc plated clear chromate) | - | - | Yes | Yes |
Plunger Nose | 1215 Steel | Carburized-Hardened | black oxide Finish (heavy force) or zinc plated clear chromate (light force) | Yes | Yes |
Spring | Music Wire | - | - | Yes | Yes |
Parts Specification
A Thread | Initial End Force (lbs) | Final End Force (lbs) | B (inch) | C (inch) | D Diameter |
1/4-20 | 1 lbs. | 4 lbs. | 1" | 3/16" | 0.119 |

Warning:
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov