ASI 2170190 A2-M6 Ring Terminal, Non-Insulated, Copper, 8 AWG, 1/4" Stud Size, 1.04" Length (Pack of 100): Amazon.com: Industrial & Scientific
Amazon.com: 10pcs 8 Gauge 8 AWG x 3/8” Pure Copper Cable Lug Terminal Ring Connectors with Dual Wall Adhesive Lined Red + Black Heat Shrink Tubing – by WNI : Industrial & Scientific
10-12 AWG #8 Stud Ring Terminal - AndyMark, Inc
Carwires PRT8 - 8-AWG Crimp Ring Terminals (4-Pack) - Walmart.com