I have been looking at both myself and like the quick cleat idea the best.
But one dumb question here.
They do appear to be just like a thru hull fitting when the male part is out. Is there any back or cap on the end of them to keep water from getting inside your boat when you wash it, or your in high seas?
That's assuming there is a hole all the way through them.
If there is a cap do they hold water?
Inquiring Minds Want To Know.