| The importance of the stud mount cannot be over stressed! The antenna stud mount acts as a bridge between the antenna and the coaxial feedline. Accordingly, it needs to allow for efficient transfer of your transmitted and received signals to and from the transceiver. If the stud mount doesn't perform that task efficiently you end up with unneeded loss. And if that isn't enough, the stud mount must be strong enough to withstand all of the stress placed upon it from an antenna that is subject to severe wind load and vibration.
We use chrome plated machine brass. Instead of 9/16" (14mm) hex-stock, we use 5/8" (16mm) stock. Instead of ABS or inferior plastic insulators, we use nylon. Instead of cadium plated hardware, we use stainless steel. Furthermore, our heavy-duty 3/8" center shanks can mean the difference between trouble free use and lost antennas. The 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.
The K-4A fits any Firestik, Firestik II, FireFly, RoadPal, 2-meter, 10-meter and scanner antennas. Also may be used with any 3/8"-24 threaded accessories.
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