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Firestik stud mounts have become the standard of our industry. This wasn't by accident. It was because users learned to appreciate their outstanding design and material quality. Instead of inexpensive aluminum,
they use chrome plated machine brass. Instead of 9/16" (14mm) hex-stock,
they use 5/8" (16mm) stock. Instead of ABS or inferior plastic insulators,
they use nylon. Instead of cadium plated hardware, they use stainless steel. Furthermore, our heavy-duty 3/8" center shanks can mean the difference between trouble free use and lost antennas. Also may be used with any 3/8"-24 threaded accessories.
Their model K-4A stud mount has been praised by communications professionals for 20 years. You can actually pay more for a stud mount but you certainly will not get more than what the K-4A offers. The K-4A should be used whenever a PL-259 terminated coax cable is to be used (K-8A,
K-9A, R-8A, R-9A). Like the K-4, this stud is designed for 1/2" (13mm) holes. In a typical installation, antennas with 0.680" (15mm) of exposed threads can be used without the fear of bottoming out before proper tightening is accomplished.
Assembly diagram
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K-4A
