VIS is the connecting fitting designed to achieve practical and strong assembling and especially conceived to join bed sides and panels. VIS can be mounted on relatively thin panels, with a minimum thickness of 18 mm; for panels with a minimum thickness of 25 mm it is possible to add a Ø 35 mm cover cap. Moreover this connecting fitting boasts two different tightening positions: standard (+) and strong (++), which helps in case of inaccurate drillings. It is not necessary to disassemble the whole structure to change the tightening position. VIS is made up of a threaded M8 dowel, a special M6 screw and the Ø35 mm cylindric joint.