3/8" to 3/4" Hole NMO Cable Mount Assembly with 13ft RG-58 Coax & PL-259 Connector

Connect your mobile NMO antenna directly to your VHF, UHF, GMRS, or CB radio transceiver with this heavy-duty Low-Profile NMO to PL-259 Cable Assembly. Designed for permanent drill-mount installations on vehicle roofs, trunk lids, or fender brackets, this assembly provides a weather-tight seal and reliable RF signal transfer. Featuring a solid brass NMO base equipped with an aggressive serrated grounding washer, this mount bites directly into the vehicle's sheet metal chassis to establish a low-impedance ground plane. Pre-terminated with 13 feet (4 meters) of flexible RG-58 coax and a standard PL-259 (UHF Male) connector, this kit offers an easy plug-and-play connection for mobile radio transceivers. 🛠️ Hole Mount & Grounding Notice This mount installs into pre-drilled vehicle holes ranging from 3/8" (9.5mm) to 3/4" (19mm). For proper operation and low SWR tuning, the integrated toothed grounding washer must make direct contact with bare chassis metal on the underside of the panel. Key Product Features 🔌 Standard PL-259 Termination: Pre-installed UHF male connector with a knurled grip fits standard SO-239 antenna ports on ham, CB, and mobile radios. 🛠️ Universal 3/8" to 3/4" Hole Fitment: Versatile brass NMO mount installs cleanly through sheet metal holes from 3/8" up to standard 3/4" openings. ⚡ Aggressive Toothed Chassis Ground Ring: Integrated serrated lock ring pierces metal undersides for a solid, noise-free ground connection crucial for low SWR. 📡 13ft (4m) Premium RG-58 Coaxial Cable: Provides optimal length to route coax cleanly through roof pillars, floorboards, and dash consoles. 📻 Multi-Band Radio Compatibility: 50-Ohm matched impedance supports all VHF, UHF, GMRS, MURS, LMR, and 27 MHz CB mobile antenna systems. Technical Specifications Specification Detail Cable & Connector Specifications Cable Type RG-58 / U Coaxial Cable Cable Length 13 Feet (~4.0 Meters) Radio Connector PL-259 Male (UHF Male) Antenna Base Mount Brass NMO (New Motorola) Female Base Impedance 50 Ohms Mounting & Installation Parameters Hole Size Compatibility 3/8" to 3/4" (9.5mm to 19mm) Diameter Holes Mount Style Low-Profile Permanent Drill Hole Mount Grounding Mechanism Integrated Serrated/Toothed Brass Washer Application VHF, UHF, CB, GMRS, MURS & LMR Mobile Operations