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Self-Locking Screw

Self-Locking Screw

A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.

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Related Experiment Video

Updated: Jun 28, 2026

Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner

Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner

Published on: June 6, 2025

A custom-made device to unlock extracoronal locking-type attachments

Tony Daher¹, Nadim Z Baba, Nadim Baba

¹Department of Restorative Dentistry, School of Dentistry, Loma Linda University, Loma Linda, CA, USA.

The Journal of Prosthetic Dentistry

|November 11, 2008

Summary

No abstract available in PubMed .

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