Description
Ball Plungers-Steel
The version has a steel body and a 440C stainless steel ball. Made in USA.
Install and/or adjust from either end. When using the slot at the ball end to install, use a Plunger Wrench instead of a screwdriver to avoid over-compressing the spring (see Related Products below). Note: the smallest sizes (#4-48, #5-40, #6-40, and M3) have no slot at the ball end. A thread-locking element holds the unit securely in place after installation.
Application Information
Material
| Item | Material | Heat Treat | Finish | DFARS | RoHS |
| Body | 1215 Steel | – | zinc plated clear chromate, zinc plated yellow chromate, or black oxide Finish, depending on the spring force | Yes | Yes |
| Ball | 440C Stainless Steel | – | – | Yes | Yes |
| Spring | Music wire. The smallest five sizes (#4-48, #5-40, #6-40, #8-32, #8-36) have a body made of 300-series Stainless Steel, and a spring made of 302 Stainless Steel | – | – | Yes | Yes |
Parts Specification
| A Thread | End Force | Initial End Force (lbs) | Final End Force (lbs) | B (inch) | C (inch) | D Diameter |
| 1/4-20 | Heavy | 4 lbs. | 12 lbs. | 17/32″ | 0.035″ | 0.125 |
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