Only a mystery if you don’t notice that the two ends of the bolt can move relative to each other.
lornsays
Yes, if you notice that the ends move relative to each other you figure some sort of chicanery is going on. But the mechanism is still quite a good mystery. I seems quite a complicated behavioral matrix.
Amazing that it is such a simple mechanism.
Thanks for posting.
jrkrideausays
Are there left and right threads too?
BTW it is not a screw it is a bolt. Screws have sharp pointy ends.
Norm Gearysays
No its not a bolt its a screw because the whole shank is threaded -- bolts do not have the thread go up to the head.
methuseussays
It’s a bolt because it’s being used with a nut. If it was being inserted into a piece with pre-formed threads, it would be considered a screw. It doesn’t matter how far up the shaft the threads go, or even how you drive the head. It is purely whether you use a nut or not. Bolts commonly have some part of the shank unthreaded, but they are still called bolts if used with a nut no matter how far the threads go.
Only a mystery if you don’t notice that the two ends of the bolt can move relative to each other.
Yes, if you notice that the ends move relative to each other you figure some sort of chicanery is going on. But the mechanism is still quite a good mystery. I seems quite a complicated behavioral matrix.
Amazing that it is such a simple mechanism.
Thanks for posting.
Are there left and right threads too?
BTW it is not a screw it is a bolt. Screws have sharp pointy ends.
No its not a bolt its a screw because the whole shank is threaded -- bolts do not have the thread go up to the head.
It’s a bolt because it’s being used with a nut. If it was being inserted into a piece with pre-formed threads, it would be considered a screw. It doesn’t matter how far up the shaft the threads go, or even how you drive the head. It is purely whether you use a nut or not. Bolts commonly have some part of the shank unthreaded, but they are still called bolts if used with a nut no matter how far the threads go.