A post for securing a panel (1) includes a base (5), having two faces (5a, 5b) which are substantially orthogonal with respect to each other. The base has one face (5a) which is parallel to the plane of the panel (1), having a linear compression seal (13) at its free end, and one face (5b) which is orthogonal to the plane of the panel (1). The base has a flap (7), articulated with respect to the base (5) at the free end of the face (5b) which is orthogonal to the plane of the panel (1), carrying a complementary linear compression seal (13) at its end opposite to the articulation (51, 71), and a wedge (9), having an insert (11), inserted at the level of the articulation (51, 71) between the base (5) and the flap (7) in the assembled state which, when inserted, locks articulation (51, 71) in a position clamping the panel (1).

A device for fastening a panel in a floor profile, having a floor-side floor profile with a guide channel of U-shaped cross section, a support element arranged in the guide channel, is U-shaped and has a fastening channel, wherein support walls form an introduction opening for introducing the panel with their edges facing away from a rest face. At least one movably attached clamping element is provided on each support wall and interacts with an associated working face on the support wall such that the clamping element is movable from a starting position, into an end position, and back and effects clamping of the panel arranged in the fastening channel between the support walls. An actuating device is included, which is connected to at least one clamping element and arranged on the mounting side and via which the clamping element is moved and the panel is clamped in the fastening channel.