Amp - Te Connectivity 34173.
TERMINAL, RING, 3/8, CRIMP, YELLOW, 12-10AWG; Stud Size - Metric:M10; Stud Size - Imperial:3/8"; Wire Size AWG Max:10AWG; Conductor Area CSA:6mm²; Product Range:PLASTI-GRIP Series; Insulator Colour:Yellow; Insulator Material:Vinyl.