Type F coaxial connector is the typical one used for 75Ω cable assignment system, especially for CATV, broadcast television network, closed-circuit television, utensil of branch, utensil of distributor. It can be used for impedance mating requiement occasion, also can be used for no mating impendence occasion. Its characteristic is screw coupling, insert and close conveniently, stable performance, reasonable price. FL 10 product is M10x0.75 thread of metric; type F is 3/8-32UNEF thread of English sysytem. Type F connectors are interchange with the same-type connector of abroad.