A mounting device includes a plug-in part with a shaft portion and a head portion and a base part with a rest surface and a retaining side opposed to the rest surface. The base part has locking legs projecting from a side of the rest surface configured to lock within an aperture of a carrier substrate. The base part connects with the plug-in part by inserting the shaft portion in a plug-in channel defined by the locking legs. The mounting device is configured to bring the head portion into engagement with the carrier substrate locked at the locking legs and guide a binder portion across the head portion and retain the binder portion at the base part such that the head portion is urged in the plug-in direction when connecting a binder by the binder portion guided across and connected while the base part is urged in the opposite direction.