This listing is for new old stock (NOS) Ancor Marine Grade Ring Terminals, part number 312403. These terminals are designed to fit 12-10 AWG wires with #8 studs. As marine-grade components, they are suitable for use in marine environments where durability and reliable connections are required. Made by Ancor, a trusted name in marine electrical components, these ring terminals ensure secure and stable connections. Please refer to your specific marine setup requirements to confirm suitability.