Screw jack with a spring-loaded clutch mechanism. Knurled head disengages when the indicated end force is reached. Prevents exerting excessive force on thin wall and other delicate workpieces. Furnished with Knurled Check Nut. Made in USA. The Torque Screw Jacks shown here are for Heavy System MF50 (5/8-11 thread). For our complete selection of Torque Screw Jacks, see Related Products below.
Torque Screw Jacks provide controlled torque counterclockwise, and positive retraction clockwise.
| ITEM | MATERIAL | HEAT TREAT | FINISH | DFARS | RoHS |
| Body, Knob and Check Nut | 1215 Steel | - | Black Oxide | ✔ | ✔ |
| Spring | Spring Steel | - | - | ✔ | ✔ |
| Ball | 440C Stainless Steel | - | - | ✔ | ✔ |
| Part Number | A | END FORCE (lbs) | B | C DIA | KNURLED CHECK NUT (FURNISHED) |
| CL-8-TSJ | 5/8-11 | 20 - 22 | 1/2 | 1-1/8 | CL-5811-TSJN |
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