High voltage distribution box with heat sink

The high voltage distribution box as set forth in 5, wherein the tubular base extends through the first aperture, the second aperture and the third aperture and the head portion is pressed against a bottom surface of the bus bar.

A fastener for use in a high voltage distribution box, the high voltage distribution box including a case having an open bottom opposite of an open top, a bus bar in electrical connection with a relay, the bus bar and the relay disposed in the case, the bus bar including a first aperture;

• a sheet of material including a second aperture registered to the first aperture, and a heat sink including a protrusion extending toward the bus bar, the protrusion including a third aperture registered to the first aperture and the second aperture, wherein the sheet of material is interposed between the protrusion and the bus bar a fastener comprising:
• a tubular base and a head portion having a diameter greater than a diameter of the tubular base, the tubular base disposed within the first aperture, the second aperture and the third aperture, wherein the tubular base is configured to receive a bolt so as to secure the bus bar to the protrusion, and wherein the tubular base has a thickness and a height greater than an arc potential so as to prevent an arc from occurring.

The fastener as set forth in 15, wherein the head portion is pressed against a bottom surface of the bus bar.