Abstract: An antenna mounting component to be mounted to a fixing aperture on a mounting face of a car body, includes: a male screw for fixing an antenna; a protrusion provided on an antenna base, the protrusion having a female screw corresponding to the male screw; and a legged washer having multiple legs, the male screw being inserted into the legged washer, the legs being to be fixed onto the mounting face. The multiple legs are disposed at an equal interval in a circumferential direction around the inserted male screw through the legged washer; and distances in a radial direction from the inserted male screw to the respective contact points of the multiple legs with the mounting face are equal.

Abstract: An antenna mounting component to be mounted to an aperture for fixing on a mounting surface of a car body includes: a male screw for fixing an antenna; a female screw which is provided on an antenna base and corresponds to the male screw; and a fixing member which is fixed onto the mounting surface when the fixing member is pinched by the male screw and the female screw, the male screw being inserted in the fixing member. When the fixing member axially rotates about the inserted male screw, the state of the fixing member is converted from a first state into a second state, the first state being a state in which the fixing member is insertable through the aperture for fixing and the second state being a state in which the fixing member is not insertable through the aperture for fixing.

Abstract: An antenna mounting component to be mounted to a fixing aperture on a mounting face of a car body, includes: a male screw for fixing an antenna; a protrusion provided on an antenna base, the protrusion having a female screw corresponding to the male screw; and a legged washer having multiple legs, the male screw being inserted into the legged washer, the legs being to be fixed onto the mounting face. The multiple legs are disposed at an equal interval in a circumferential direction around the inserted male screw through the legged washer; and distances in a radial direction from the inserted male screw to the respective contact points of the multiple legs with the mounting face are equal.