"L-com's wide selection of bulkhead mountable feed-thru coaxial adapters provides an economical solution to pass coaxial connections through panels and bulkheads. Utilizing a D or double"" D industry standard mounting hole and covering all the most commonly used 50 and 75 Ohm interfaces including BNC, SMA, RCA, TNC, UHF, Type F and Type N, you are sure to find the right product for your application. Most of these couplers are typically in stock and ready for immediate delivery."""