... Jack, Made of Brass and CuZn36Pb3 Materials, Available in Various Mating Pin Diameters UL, RoHS, ISO9001 compliant Crown Spring Jack ... , Made of Brass and CuZn36Pb3 Materials,Available in Various Mating Pin DiametersMaterial quality: QBe2.0+ heat treatment HV330-390 ... , by customers' request Materials: brass and CuZn36Pb3 Available in various sizes Plating: tin-plated 2µm and 5µm Available ...