Ultimate Vibration Resistance: Self-Locking Key Locking Inserts

Top Screw's Self-Locking Key Locking Threaded Inserts are engineered for heavy-duty applications where thread failure is not an option.

Mechanical Locking Principle: These inserts feature a dual-action locking system.
The External Keys provide a positive mechanical lock against rotation within the parent material.
Internally, the Self-Locking Thread applies constant pressure on the bolt, preventing back-out caused by dynamic loads or extreme vibrations.

Ideal Scenarios: Perfect for Aerospace, Automotive, and Heavy Machinery industries where components face constant thermal cycling and high-frequency oscillation.

Comparison: While our Standard Key Locking Inserts focus on strengthening threads and preventing the insert from rotating, the Self-Locking version adds an extra layer of internal security, ensuring the bolt remains fixed without the need for additional locking washers or adhesives.

Top Screw – Your Partner in High-Performance Fastening Solutions.