ARB adjustable half hinge for 18 to 24 inch door sections. Works the same way as the full hinge version but it is a half hinge, so it only covers part of the section joint. This adjustment slot helps you fine-tune section alignment when things are not sitting flush. includes four 5/16"-18 bolt nuts, clevis pin, and cotter ring. Good for repairs where the old hinge is worn and you need a little adjustability to get the panels back in line. Check your section height first.