Self Locking Key Locking Threaded Inserts

Before you installing key locking insert,make sure that you have drill a hole, tap the threads, and countersink.
Start to screw the key locking insert into the hole and use hand tool to thread it down until it's resting slightly below the surface.

Take the 2nd installation tool and use a hammer, tap the keys down into the insert to secure the installation

Self-locking inserts, also known as self-locking threaded inserts or thread inserts, are components used in mechanical and engineering applications to provide secure and reliable threads within materials that may not have sufficient intrinsic strength to support threaded fasteners.

These inserts are typically made of materials like stainless steel, brass, or other durable materials and come in various shapes and sizes to accommodate different needs.

The external threads have pins to prevent the insert from coming loose from the plate.
and the design in the middle of the internal threads makes the screw tighter when it locks in compared to the front, achieving internal thread anti-vibration and anti-loosening effects.