22-18 gauge nylon-insulated narrow-profile ring terminals, #6 stud.
The nylon insulation provides relief from vibration that can cause the wire to fail prematurely. The nylon insulation also prevents incidental metal to metal contact that can cause shorts.
While the stud size on this narrow-profile ring terminal may be the same as a standard ring terminal, the overall diameter of the head is smaller, allowing it to fit in tighter spaces
Requires two crimps (terminal to wire strands, terminal to insulation of wire). Standard tools perform both crimps. For heavier usage, use a tool that performs both crimps at the same time.