It's pin/socket and plug/jack (or plug/receptacle).
Edit: To clarify, this is already in use in the industry. Pin/socket are the electrical contacts. Plug is generally "the part on the cable" and jack/receptacle "the part on the device" but inline jacks of course make that a little iffy. I'm all for plug to involve the screw/post/latch and jack to involve nut/anchor/keep.
Edit 2: No, that does not mean the entire industry is using it, but we already have a solution for it that a lot of (yes not all) manufacturers use (whether or not random sites that resell parts stick with it is another thing entirely).
