N-connector, clamp 

Type N, male (plug), straight, TC style connector for FBT-400, LMR^®-400, TCOM^®-400, and T-RAD^®-400-FR type cables. The TC-400-NMC-2 features a solder-pin connector and is a perfect option for stranded center conductors. The Type N is a durable, weatherproof, medium-size RF connector designed for systems where excellent RF and mechanical performance is critical. They feature a threaded coupling mechanism and are fully interchangeable with N-Type connectors made to the MIL-C-39012 specification.