Black plastic paddle and locking ring with lever seal and knurled cap nut. Sealed to resist water penetration. Requires 15/32" mounting hole. Fits panels through 1/4".

12001: Ideal for lights, blower, pump, etc.
12011: Ideal for starter, horn or choke.
12021: Ideal for running & anchor lights, wipers, manual/auto bilge pumps.
12031: Ideal for trim tabs.