Non insulated wiring terminal material: hi-strength electrolytic copper * Electro-tin plated * Brazed seam * Serrated barrel with brazed seam provides excellent electrical contact & resistance to pull-out forces * Maximum electric current: 22 Awg - 9 Amp, 20 Awg - 12 Amp, 18 Awg - 17 Amp, 16 Awg - 18 Amp, 14 Awg - 30 Amp, 12 Awg - 35 Amp, 10 Awg - 50 Amp, 8 Awg - 70 Amp, 6 Awg - 95 Amp, 4 Awg - 125 Amp, 2 Awg - 170 Amp