The RZ22-4 is a ring terminal insulated with high dielectric-strength nylon for wire range #26 - #22 AWG. An inner bronze insulation grip sleeve lengthens the flexing radius of the conductor and eliminates conductor creep. Length .65 inches, .21 inches width, maximum insulation .083 inches, bolt hole #4. The terminal is high-conductivity electrolytic copper, electro-tin plated, with color-coded insulation. Installing tool WT-1452.