This is a standard PL259 UHF connector. This is the type of screw-on connector used on CB radios and CB antenna coax. These connectors are about 3/4" in diameter and male, with a center pin sticking out from the insulator.

This PL259 connector is a great option for RG58, RG59, and RG8X coax cables. 

This type of PL259 connector requires soldering to attach it to CB coax. Both the center wire and shield wire of the coax should be soldered to the connector. A coax reducer is recommended for a strong finished product.

We have several other options for PL259 connectors:

• KPL259 - Standard housing with bakelite insulator
• KPL259TX - Standard housing with Teflon insulator
• KPL259T SSS - Silver plated housing with Teflon insulator and sliver center pin
• PL2598 - Amphenol Silver PL259 for RG8