Antenna Adapter Bolts Compatible with Chevy Silverado & GMC Trucks Most Year [1x 7mm Female to 6mm Male & 1x 6mm to 6mm] (Black Adapters)

2 Adapters with 2 different size for Install Short Stubby Bullet Aftermarket Antennas on Chevy Silverado colorado Avalanche Suburban & GMC Sierra Denali Terrain Canyon

• FITMENT: Compatible with Silverado colorado Avalanche Suburban & GMC Sierra Denali Terrain Canyon
• 2 PCS Adapters with M7 or M6 female size for you install your replacement antenna,short / long /bullet style/Stubby aftermarket Antenna or even for a antenna block off
• 2 color for the antenna adapter : Polish & Black
• ALUMINIUM made，100% aluminium.
• Choose the antenna mast . The antenna mast will come with the 2 Size adapters together. and they are the same OD ,fit perfectly.
• if your truck antnena base bolts is 7mm then another adapter can be used as a extender.
• Unscrew your factory antenna, determine which adapter is compatible with your vehicle, screw adapter on your bullet antenna and screw back into vehicle.