FC fiber connectors use a threaded coupling mechanism that provides a secure connection where vibration resistance and repeatable positioning are important. They are often considered for telecom, test, instrumentation, and other optical applications where a robust connector interface is beneficial. When selecting FC connectors, engineers should verify singlemode or multimode compatibility, polish type, fiber count, cable construction, and adapter compatibility. Proper cleaning and end-face inspection remain important because connector contamination can materially affect optical loss. WAV offers FC fiber connector options for professional optical installations and test environments.