Post by wasbit Post by Commander Kinsey
Where can I get a dual thread bolt with different widths on each end?
Like this, but a smaller thread on one end.
Never seen anything like that. Does the maximum diameter have to be that of the larger thread? If the size difference is large enough, then drill out the larger one using a lathe, tap to the smaller size, and fit studding.
If the size difference is small, turn down a bolt or length of larger studding and put a thread on that with a die.
The same seller does them in various metric sizes.
You can also make things on a thread cutting lathe.
To be able to use the shop in University, we had to
take a short course on using all the machines. This item
is a part of a larger project, and thread cutting is
involved for this part.
The feature on the end, the flat bit, you would
saw that off if wishing for a different end finish.
That probably fit in some holder thingy on the lathe.
The work needs to be supported on both ends, so the
work doesn't deflect when the cutting tool presses
Any machine shop worth its salt, should have a thread cutter.
There's more to cutting threads than what little I learned,
but at least I had fun. And the item I made, still works.
The thread in this case, is done with a bladed cutting tool.
And it takes multiple passes, to make the thread. Your thread
isn't ready after just one pass.