.175, accepts standard banana plugs. jack mounts in 5/16 dia. hole or use 1/4 when jack will ground to panel in panels up to 3/8 thick. insulator and head is polycarbonate, body is nickel plated brass.
heavy duty insu-lated
2350ard 2350a-rd
714213021850
2350abL
2350a-bL