FIRESTIK K4-8R18 FIRE-RING 18`FOOT COAX WITH STUD AND SS-3H SPRING. Now you can have our high quality Fire-Flex coax, with the greatest mount termination on the market, complete with the antenna stud mount .. all in one nice package. The design of the coax termination requires a longer bolt to properly secure the antenna stud. If you use a standard stud mount on the Fire-Ring connector you will come up 4 or 5 threads short of a secure installation! The stud mount hardware is made from stainless steel. The "Fire-Ring" connector is weatherproof, low-profile and easy to install. The FireRing can be installed below the mount surface or on top of the mount surface. The small amount of room that the "Fire-Ring" utilizes make it the perfect choice for use under headliners or installations where space is limited. Includes a Firestick SS-3H heavy duty CB Radio antenna spring