Amazon.com: 8 Pcs 1 AWG x 3/8 Copper Battery Cable Lugs, Heavy Duty Ring Terminals Connectors, UL Listed Bare Eyelets Tubular Ring Battery Lugs for 1 Gauge Wire - Battery Cable Ends : Electronics
SCH30014 - Non Insulated Tubular Ring Lugs - 592MCM | Ferrules Direct
Thomas & Betts F10731 Non-Insulated Large Tubular Ring Terminal - #4, 3/8"bolt (100/Pkg) | OneSource Distributors
RS PRO Uninsulated Tubular Ring Terminal, M10 Stud Size to 25mm² Wire Size | RS
80PCS Tinned Copper Wire Lugs Kit,Eyelets Tubular Ring Terminal,AWG 8