Wilson 305-610 Stainless Steel CB Antenna Stud

Wilson’s 305-610 is an extra heavy-duty stainless steel CB antenna stud with a SO239 plug-to-plug connection built to replace worn or undersized studs on roofs and other flat surfaces.

This precision-machined stud provides a rugged, corrosion-resistant mount point for larger Wilson CB and mobile antennas. Machined from thick stainless steel and finished for a weatherproof fit, the 305-610 is intended as a direct replacement where a stronger, longer-lasting stud is required. It accepts standard SO239 connectors and is designed for secure rooftop or flat-surface installation without sacrificing signal continuity.

How does the Wilson 305-610 improve antenna stability?

The 305-610 uses heavier-gauge stainless steel and a robust plug-to-plug SO239 interface to reduce flex and wobble under wind or vehicle vibration. Its extra mass and solid mounting thread resist loosening and deformation that can affect antenna alignment and performance.

• Thicker stainless-steel construction for reduced flex
• Firm SO239 plug-to-plug connection for secure electrical contact
• Designed for larger antennas that put more strain on the mount
• Threaded base for tight mechanical attachment to flat surfaces

What surfaces and antenna types is this stud compatible with?

Built as a general replacement stud, the 305-610 works on roofs, trunk lids, gutters, and other flat mounting points. It’s compatible with Wilson CB antennas and other mobile antennas that use SO239 connectors, particularly larger models that need a more heavy-duty base.

• Roof and other flat-surface installations
• Wilson CB antennas and many third-party SO239-equipped antennas
• Replacement for larger, high-profile antenna applications
• Works with standard SO239-PL259 connector systems

How is the 305-610 protected against corrosion and weather?

The stud is machined from heavy-duty stainless steel, which naturally resists rust and pitting in outdoor environments. Its finish and robust fit reduce water intrusion at the connection point, extending service life in salt, rain, and road-spray conditions.

• Stainless-steel material resists oxidation and salt corrosion
• Precision-fit SO239 plug reduces moisture entry at the connector
• Durable finish withstands road and marine exposure
• Maintenance-free compared with plated or thin-metal studs

What makes this a good replacement part for larger antenna setups?

The 305-610 is purpose-built to handle the mechanical and electrical demands of larger antennas. Where standard studs may bend, strip, or lose conductivity over time, this heavy-duty stainless assembly maintains a solid physical mount and reliable RF contact.

• Extra-heavy construction supports larger antenna bodies and wind loads
• Retains secure electrical continuity for CB transmissions
• Designed to fit standard SO239 plug-to-plug connections without adapters
• Simple swap-in replacement for many Wilson mounting systems

Who is this for: Installers, vehicle owners, and radio enthusiasts who need a dependable, long-lasting mount for larger CB or mobile antennas — especially where corrosion resistance and mechanical strength matter. If you’re replacing a worn stud, upgrading to a sturdier base for a high-profile antenna, or preparing equipment for heavy-weather use, the Wilson 305-610 provides a professional-grade, bolt-in solution that keeps your antenna secure and your connections solid.