A fastening device of locking press button type includes a first element (1) which in use is present at a substrate and a second element (9) which, to fasten an object (10) to the substrate, can be releasably fastened to the first element by way of a to a snapping part (2) of the first element snapping snapping part (11) of it and wherein the elements (1, 9) remote from their snapping part (2, 11 respectively) have a hooking part (3, 8 respectively) such that the elements (1, 9) first have to be mutually engaged making a mutual angle by the hooking parts (3, 8) and then are pivoted onto each other to subsequently be fixed snapped to each other.