The Mirror Rail Single Groove Mount is a clamp-on antenna mount designed to attach to mirror rails, roll bars, roof bars, and other round bars between 7mm and 25mm diameter — no drilling required. The single groove clamp secures firmly to the bar, providing a stable base for any antenna with a standard 3/8"x24 thread. The built-in SO-239 (UHF-Female) socket allows direct connection of a PL-259 terminated coax cable. Ideal for CB radio, amateur radio, and PMR mobile antenna installations on vans, 4x4s, trucks, and vehicles with roof or mirror rails. Key Features Clamp-on mount — no drilling required Fits round bars: 7–25mm diameter 3/8"x24 thread — fits standard CB & amateur radio mobile antennas Built-in SO-239 (UHF-Female) coax socket Ideal for mirror rails, roll bars & roof bars Suitable for CB, amateur radio & PMR mobile installations Technical Specifications Type: Single groove mirror rail clamp mount Thread: 3/8"x24 Connector: SO-239 (UHF-Female) Bar diameter: 7–25mm Suitable for installation on: Trucks HGVs Vans Recovery vehicles Agricultural machinery Construction equipment Off-road vehicles Fleet vehicles