RG59 BNC Compression Male Coax Fitting Connector Adapter 75-Ohm Insulation Plug With Fixed Copper Pin Used For CCTV Surveillance Systems Kit,Coaxial Cable,Monitor Accessories Pack Of 20PCS [Name]:It's 75Ohm Compression (squeezing)BNC Connector/Q9 Connector Solderless,All Metal Construction, Anti-Corrosion,360 Radial Compression Provides Superior RF Integrity. [Material]:The Body Of Nickel-Plated Brass,Gold-plated Copper Conductor,Inside of pure copper pin holder,Quickly Installation And Removal,More Reliable And Easier To USE Better Than Traditional Hex Crimp BNC Connectors. [Specification]: Length: 3.85CM, 3.35CM after Compression,Standard BNC / Q9 Interfaces For about 75-4 / RG59 6mm Diameter Cord,And More Choice Another RG58 And RG59 [Use]:The Need To Use With Compression Tool Pliers To Compression And RG59 Coaxial Cable Connections,CCTV Security Camera Systems. [Features]: Waterproof,Anti-shedding,Suitable For Outdoor Construction,Installation Easier Solderless,Saving Time And Faster Work, Secure Electrical Properties Of The Best Design,Wide Operating Band From 0.3 MHz To 3 GHz. Suitable For Use In The CCTV Secuirty System,Structured cabling, Home Theater,Video Entertainment Industries.