FireStik SS-194A Pickup Truck Bedrail Stakehole Antenna Mount - Stainless Steel FIRESTIK Screw-On Extended Stake-Hole CB Antenna Mount - Stainless Steel SS-194A. Accepts regular Optional screw-in Coaxial cable with PL-259 Connector. No Drilling - Clamps into stake-hole on bedrail of many Pickup trucks For any optional CB or Amateur radio antennas with regular 3/8-24 bolt-in thread.