- Stainless Steel Heavy Duty CB Radio Antenna Mount Spring
- Made from long lasting, top grade electro-polished stainless steel
- Upper and lower inserts are made of chrome-plated machine brass
- 3/8" x 24 threads fit all Firestik antennas, mounts and accessories
- Works with all Firestik antennas up to 60" long
- Physically, each spring is about 3.0"
- 100% American made with 100% American materials