Wadoy SS-3H CB Antenna Spring Mount, Stainless Steel Antenna Spring Heavy Duty Antenna Spring to fit Mobile/in-Vehicle CB Radio Antenna Mount up to 60" Long and 3/8", 24 Threads - 305311SS
Standard 3/8" x 24 threads , mounts and accessories , Each spring is about 3.0"
Works with antennas up to 60" long.Made from long lasting, top grade electro-polished stainless steel
Note:The antenna spring is heavy duty, but it may be flex when the speed is too fast , or if it will break down when the antenna being pushed or use it for some months ,importantly every person uses a different requirement,It may be springly、weak or stiff to you, but not the same to others.so please decide twice before you buy it.
Stainless Steel Antenna Spring is well tested by manufacturer, Easy to use and using for a long life
Improved Antenna Performance: The spring mount helps to reduce the impact of vibrations and shocks on the antenna, resulting in improved signal transmission and reception quality.