Vehicle antenna mounting apparatus

A vehicle antenna mounting apparatus, comprising:

• a base member mounted on an outer surface of a vehicle panel and configured to cover a mounting hole formed in the vehicle panel;
• a screw shaft extending from a lower surface of the base member and passing through the mounting hole;
• a fastening member having a support portion supported on the base member in a state of being coupled to the screw shaft, and a plurality of elastic deformation portions extending from the support portion and provided with a locking portion at a lower end of the plurality of the elastic deformation portions;
• a deformation guide member coupled to an outer surface of the screw shaft and configured to press the plurality of elastic deformation portions in a radial direction of the screw shaft as the deformation guide member moves toward the base member;
• and
• a tightening nut fastened to the screw shaft and configured to move and support the deformation guide member,
• wherein the plurality of elastic deformation portions comprise:
• a first bending portion bent upwardly from a periphery of the support portion and then bent downwardly;
• and
• a second bending portion extending inwardly of the vehicle panel and then bent outwardly in an upward direction to form the locking portion, and
• wherein the fastening member is set such that a maximum distance between the locking portions is less than a width of the mounting hole in a state in which the fastening member is not fastened.