Hi Alctel:
Really almost all of the toe rail nuts on our 1980 Hunter 36's are accessible. However, as I intimated already, to do so takes quite an arsenal of socket set equipment. And some contortionist discomfort.
For some of the nuts, such as at the bow, two 12" extensions (for 24" total) are needed. Coupled to a universal swivel fitting, coupled to a long (deep) socket. And often the edge liner obstructs. But since it does have some give, it can be first levered/pushed out of the way. And for some nuts, I could get an extension + swivel into the area, but the angle was such that the actual socket couldn't fit over the nut. So for those I used "crows feet" sockets.
http://www.bing.com/images/search?q...ef88b6684a789977e1125co0&mode=overlay&first=1.
Sometimes, I could only feel the nut with my fingers. But couldn't actually get my head into a position to see. So for those its "close your eyes" and go by virtual visualization.
Wrapping electrical tap around the universal swivel sometimes was needed to keep it from flopping too much as the extension + swivel + socket was maneuvered into position.
In the end, I was able to tighten all but a few.