The 90 degree structural pivot nub is an external fastening method commonly used as a connection hub to create a structural pivot ranging from 0-180 degrees perpendicular to the mounting profile. It has a slot tab that helps prevent the nub from rotating as well as assists with alignment in the T-slot. The 90 degree structural pivot nub requires no machining services and can be easily assembled, lending itself to repositioning and reuse. The suggested mounting hardware can be found on the "Suggested Hardware" tab.