Firestik - SS3H - Stainless Steel Spring (Heavy Duty)
According to Firestik, every antenna should have a spring. Springs protect the antenna, mount and vehicle. This spring is made from long lasting, top grade electro-polished stainless steel. The upper and lower inserts are made of chrome-plated machine brass and have standard 3/8"-24 threads to fit all Firestik antennas, mounts and accessories.