Spring-loaded plunger that locks in retracted position. To lock, pull knurled knob back and turn 90°. Slight taper on plunger tip for easy alignment. Made in USA.
Pull knob to retract

Turn 90° in either direction to lock

| Steel | |||||
| Item | Material | Heat Treat | Finish | DFARS | RoHS |
| Plunger | 1215 Steel | Carburized-Hardened | Zinc Plated Clear Chromate | Yes | Yes |
| Body and Knurled Head | 1215 Steel | - | Zinc Plated Clear Chromate | Yes | Yes |
| Spring | 17-7PH Stainless Steel | - | - | Yes | Yes |

| A Thread | Initial End Force (lbs) | Final End Force (lbs) | B Diameter Nominal | B Diameter Actual | C (inch) | D (inch) | E (inch) | F Diameter (inch) |
| 1/2-13 | 2.5 lbs. | 10 lbs. | 1/4 | 0.250 | 1/4" | 7/8" | 3/8" | " |