They feature “male” (threaded on the outside) and “female” (threaded on the inside) ends to connect incompatible pipes. The following is a detailed analysis of male and female connectors, covering definitions, structural features, performance. In electrical and mechanical trades and manufacturing, each half of a pair of mating connectors or fasteners is conventionally designated as male or female, a distinction referred to as its gender. The female connector is generally a receptacle that receives and holds the male connector. Let's break it all down — from female plumbing fittings, male plumbing fittings, to the difference between male and female fitting, including how they're used, and when to pick one over the other. What Is Male Fitting? Let's start with the basics. From how they slot together to when they're interchangeable, here's what you need to know to make practical, confident decisions across all types of electrical connectors.