Abstract: An antenna mount for a vehicle includes an insulated base with an internally threaded sleeve defining a central opening in the base. A blind-type clamping assembly threads into the sleeve for anchoring the base to a body panel of a vehicle. The clamping assembly includes a clamp member with a threaded stud and integral oblong clamping flange at the lower end of the stud. A stud nut threaded internally and externally threads onto the stud and into the sleeve for joining the clamping assembly to the base. The stud joins the flange at a position offset from the geometric center of the flange toward one of its ends to subdivide the flange into two flange portions of unequal length so as to facilitate entry of the flange through a smaller than usual installation hole in the vehicle body panel and subsequent clamping of the flange against the underside of the panel through progressive threading of the stud nut into the base.