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FEATURES: Screw jack with a spring-loaded clutch mechanism. Knurled head disengages when the indicated end force is reached. Prevents exerting excessive force on thinwall and other delicate work pieces. Furnished with Knurled Check Nut.
SIZES: Available in the following thread sizes — see Dimensions page for part numbers:| | 1/4"-20 | | | 5/16"-18 | | | 3/8"-16 | | | 1/2"-13 | | | 5/8"-11 |
MATERIAL: Body, knob, and check nut > 12L14 steel, black oxide finish. Spring > Spring steel. Ball > 440C stainless steel. |
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Torque Screw Jacks provide controlled torque counter-clockwise, and positive retraction clockwise.
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