Patent ID: 7516579

Claim:
A holder for coupling a panel to a substructure, the holder comprising: a connection member adapted to be fixed to the substructure, the connection member having an internally threaded central bore and a surrounding wall with at least one threaded hole extending transversely to the central bore; a panel holder arranged mirror-symmetrically with respect to the connection member at a distance from the connection member, the panel holder having an internally threaded central bore and a surrounding wall with at least one threaded hole extending transversely to the central bore; and a one-piece spacer element comprising a pair of threaded pins having a common axis, the threaded pins being received in respective said central bores so that the distance between the connection member and the panel holder is adjustable, each said threaded pin having at least one surface groove extending parallel to the axis, whereby said threaded holes and respective said surface grooves are adapted to receive grub screws to fix said spacer element with respect to said connection member and said panel holder.