

The metallic brass bushing with metric thread inside and with a rough outer surface, to provide a better grip inside the hole.
The reduced body of the bushing makes it suitable for applications in solid, thin-based materials.
Main advantages:
Smooth expansion due to the grooves in the bushing body;
Rough surface to prevent rotation inside the hole;
Expansion is performed by screwing a metric screw or threaded rod;
The metallic brass bushing with metric thread inside and with a rough outer surface, to provide a better grip inside the hole.
The reduced body of the bushing makes it suitable for applications in solid, thin-based materials.
Main advantages:
Smooth expansion due to the grooves in the bushing body;
Rough surface to prevent rotation inside the hole;
Expansion is performed by screwing a metric screw or threaded rod;