7 mm. female to 6 mm. male.
For:
Chevy Silverado and GMC Sierra Trucks 2007 and newer.
This screw adapter is to install aftermarket short antennas to your truck. Screw it in to the bottom of your aftermarket antenna and then screw the whole thing in to place.
Made from CNC Billet Aluminum and then Anodized Black.
Direct Fitment.