Yup, they do, but they sell them in lots of 5.
In my particular instance I don't need that many. If it came to buying McFarlane I'd just as soon apply that money towards buying a circuit breaker. I already have a 5-amp breaker, just need a 1-amp. But I don't want to go through the trouble of installing them right now (they're mounted in the tailcone, wedged between the between battery box and the fuselage skin).
