I've got a client who has asked for a set of bunk beds that can be converted to two single beds. As one of the proposals I'm going to do a variation on this bed part of which will involve removing the tapers at the bottoms of the posts. My question concerns the tops of the head board posts. I'm thinking of making the top 'cubes' removable. They'd sit on steel pins that would locate in holes on the bottoms of the foot board posts. What I'm looking for is suggestions for how to keep the cubes tight or at least from spinning when they are on top of the posts instead.
When my brother and I were living at home we shared a bed room and had bunk beds that were convertible in the same way. The head boards had turned balls at the tops of the posts that covered lag screw-type threads. The lag screws were the pins to locate the foot boards on top. This wasn't a problem when I was a kid. Neither of us was ever in danger of loosing an eye on one of those screws or anything. Of course kids these days are apparently not as tough as we were back then (or their parents are more litigious) so I won't use the same screws.