Welcome to JZY to buy PVC Insulated Spade Terminals for 12-10AWG from China. Vinyl-insulated spade terminals for 12-10 AWG , butted seam spade terminals are used to mate, connect, or terminate a single 12-10 AWG wire, while allowing for a connection to a screw or stud type electrical connection. The vinyl material acts as an economic insulation type and the butted seam is the most common type of terminal barrel. Vinyl insulated fork terminals are commonly used in automotive and marine vehicles, but can also be used in various other electrical applications.