2 AWG-5/16" Ring (M8) 20 pk Battery Lugs, Copper Lugs, Battery Cable Ends, Tubular Ring Terminals, Crimp Wire Ring Lugs, Battery Terminal Connectors with Heat Shrink Tubing - Walmart.com
JacobsParts 2/0 AWG Insulated Ring Terminal 00 Gauge, 5/16" US Custom Stud Size, Red and Black Boots for Car Audio Amp/High Current Power Cable/Ground Wire: Amazon.com: Industrial & Scientific