FeaturesOversized locknut provides for a strong vibration-proof terminationCaptive sealing ringSerrations on hub body and locknut provide effective positive ground pathInsulated throat protects conductorsSuitable for use with NEMA type enclosures 2, 3, 3R, 4, 12 and 13The hubs fit into standard knock-out dimensionsBuna n sealing ring1/2-14 NPSM thread