PPC's CF81GHZM 'F' Female splice adapter offers a nickel plated brass body design for superior corrosion resistance. Ideal for use in home, the Gold plated Beryllium Copper 4-point center conductor contact provides superior conductivity, connection repeatability and corrosion resistance. These splice adapters also feature a contact designed to spin freely within the insulators inhibiting damage to the center conductor upon installation. Single Dwelling Unit (SDU),& Multi-Dwelling Unit (MDU) Comes in a pack of 100 pcs.