4 Pole Plug & Socket Connector with Rubber CapNormally used with a trailer where only limited functionality (taillights. brake lights) is needed. Ideal for boat trailers or RVs towing a car on a flatbed trailer.Features:Diecast metal housingsScrew terminals accept up to 12 AWG wire.Replaceable interiorsBrass split-pin contacts are aligned to assure proper contact and minimal voltage dropSpring-loaded socket doors (the plug locks securely into the opening)Wiring codes are identified on the insulatorTwo mounting holes on the flange are 17/64" (6.7 mm) in diameter. 2-15/16" (74.6 mm) in centers.Mount through a 1 3/8" (34.9 mm) diameter hole.With special housing that protects terminals from road splashSpecifications:Housing: Plated steelCircuitry: 4Input Terminals: BrassContact Material: Screw