The RH9731U is a large ring terminal with 90 degree bend, insulated with high dielectric-strength nylon for aircraft wire size 1AN. These ring terminals have funneled barrel entry, deep internal serrations, and overlapping seams. Length 2.14 inches, .77 inches width, maximum insulation .500 inches, bolt hole 3/8 inches. The terminal is high-conductivity electrolytic copper, electro-tin plated, with color-coded insulation, rated for 105°C max temperature. Installing tool TBM6S.