These stainless steel mounts were specifically designed to mount antennas on the flat side-view mirror arm supports commonly found on pick-ups, When used in this manner, there is no need to drill any holes in the vehicle or mirror support arm, More >, Clamp-On Stainless Steel Bracket and Clamp, Includes Screw-On K-4A Antenna Stud, Designed to Mount Antennas on the Flat Side-View Mirror Arm Supports, Clamp-On Stainless Steel Bracket and Clamp, Designed to Mount Antennas on the Flat Side-View Mirror Arm Supports, For Firestik Antennas Up to 4, SKU: CBDST0882