TruComponents Cord End Terminals Ferrule 629212 - TruComponents TC-13377212, The TruComponents TC-13377212 is a ferrule, partially insulated and designed for 4 mm² wires, available in grey. It comes in a package of 1000 pieces and is suitable for providing secure and reliable connections in electrical applications. Typically used in circuitry and wiring projects, these ferrules ensure efficient wire termination and prevent fraying. TRU COMPONENTS TC-13377212 Ferrule 4mm² Insulated Grey 1000 pieces