A punch-riveting die comprises a basic body, which has a recess for forming an underside of a punch-rivet joint, the recess having a base and an annular wall. In a central region of the base, the die includes an annular radial-flow inhibiting device, which inhibiting device limits a radial material flow out of the inner region of the annular radial-flow inhibiting device.

A blind rivet fastening tool in which the jaws are open at the original position, and at a return step in which the tool is returned to the original position after a blind rivet is fastened the fastened blind rivet is pushed out. The tool comprises a hollow nose housing for housing a mandrel; a nose piece provided at a front end of the nose housing and having an opening; a floating piece provided at a front end of the inside of the nose piece; the floating piece having a though hole in which the mandrel is inserted; a jaw guide provided at the back side of floating piece and having an inside surface which has a smaller diameter toward the front end thereof; jaws provided inside the jaw guide for holding the mandrel; a pulling head and a jaw pusher for respectively pulling back and pushing forward the jaws.

The present invention is an electrical box cover system and method of installation that covers and protects existing electrical boxes and their electrical components. This invention prevents corrosion and the resulting damage to the mechanical and electrical components of the electrical box while ensuring the electrical box is safe to open and allowing access to the inside of the electrical box. The electrical box cover system includes a cover, fasteners, and a gasket. Generally, to install the cover, the fasteners are drilled through the cover and onto the sides of the damaged electrical box with the gasket, which is placed in the cover.

The present invention is an electrical box cover system and method of installation that covers and protects existing electrical boxes and their electrical components. This invention prevents corrosion and the resulting damage to the mechanical and electrical components of the electrical box while ensuring the electrical box is safe to open and allowing access to the inside of the electrical box. The electrical box cover system includes a cover, fasteners, and a gasket. Generally, to install the cover, the fasteners are drilled through the cover and onto the sides of the damaged electrical box with the gasket, which is placed in the cover.