12-10 AWG Vinyl Insulated Ring Terminal 5/16" Stud Vinyl ring terminals are basic tongue ring terminals. Safe and reliable connections because it cannot be disconnected unless the screw is completely removed. Vinyl insulated ring terminals are made of tin-plated copper with brazed seam, vinyl (PVC). 300V, 75 degrees C. FEATURES: STYLE: Standard MATERIAL: Vinyl QUANTITY: 10 Count WIRE SIZE: 12-10 AWG STUD SIZE: 5/16 " LENGTH: 1.326 WIDTH: 0.59 BRAND EQUIVALENT: Morris Products 01068 Penn Union R4C56