Polypropylene insulatedFerrules ensure reliable electrical connections when terminating conductors in screw clamp terminal blocksMade of high conductivity copperFraying and breaking of wire strands is prevented and the possibility of an unreliable connection is minimizedInsulated ferrules prevent conductor breakage due to bending, wire stress or vibration, while facilitating wire insertions into the terminal block clampFerrules are the preferred alternative to twisting wire stands or tinning the wire end before terminating into a terminal blockFerrules are thin-walled copper tubes, which are mechanically crimped onto the ends of stranded wiresMeets emerging global standards, requiring wire to metric-style terminal block installations to be terminated with a "pin" style terminalERG4 recommended tool

0.295 in ID x 0.866 in L x 0.008 in THK Pin, 0.433 in Dia Base