Thomas & Betts F10711 Non-Insulated Large Tubular Ring Terminal - #4, 1/4"bolt (100/Pkg) | OneSource Distributors
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
56pcs Battery Cable Ends 8-4 Awg Tubular Ring Terminal Connectors | Fruugo NO
Tubular ring terminals for compacted wires, CKOR type
SCH30014 - Non Insulated Tubular Ring Lugs - 592MCM | Ferrules Direct