Abstract: A fastening device for fastening skateboard trucks to a skateboard, or other articles and components to one another includes a threaded hexagonal body element having a planar upper surface and a planar lower surface. The threaded hexagonal body element body element includes a threaded receiving aperture for receiving a bolt or screw. An enlarged hemispherical head with a circular surface is mounted on or formed integrally with the threaded hexagonal body element on the planar upper surface. The enlarged hemispherical head has a hexagonal aperture in a central polar region thereof being adapted to receive and secure a hexagonally configured tool therein.