This is a complete Aluminum Antenna Quick Disconnect (AQD) Kit and contains everything to mount the kit to your provided mounting platform.
The Aluminum AQD is recommended for use on all mobile mounted antennas with light or smaller antennas due to the wind load while driving. It has 3/8"-24 mounting holes.
Kit includes: Male and Female Quick Disconnect Halves, Compression Spring, 2-1/4" X 1/4"-28 Through Bolt, 1/4"-28 Nylock Nut, 1/4" Washer x2, 1-1/2" 3/8"-24 Set Screw, and 4g packet of Anti-seize Compound.