Do you know what this is?

[gono]

I'm in the process of wiring my 55' 3100. I bought a wire harness about 20 years ago and I'm not sure where from. The wire leads were numbered so I contacted a few vendor for a wire diagram but they didn't work. Long story short, I went wire by wire and figured out he wire harness. so here's the question, on the headlights and parking lights I have this connection. How does this connect to the headlights? Am I missing the male connector to this plug? Do male spade connectors plug in? I'm ordering the pig tail from the headlights and I'm hoping they plug in but the catalog didn't show the connecting end and I'm expecting bare wires. Help!