• The hex drive nut and domed washer are integrated.
• The nut has grouting channels through it.
• The domed washer transitions to a steel trumpet that provides a sealing fit with a deformed plastic sleeve.
• The deformations of the plastic sleeve center the bar inside, allow grout to flow inside and outside the sleeve.
• The deformations are designed to transfer the load from the inner to the outer grout.
• The sleeve is a protective barrier against corrosive elements.
• The bolt is installed using an expansion shell for immediate support.

Installation
The grout nozzle is easily attached over the end of the bar and sealed against the drive nut. Grout is injected through the nut.

The bar is completely encased in grout even at the critical inside of the nut for maximum corrosion protection.