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Does there exist any type of Nut, that can be screwed on a threaded rod that can slipped in without having to go to the ends of the threaded rod? I can sort of imagine a Nut that was a U shape instead of O shape, or perhaps two C shapes that could interlock some how. Does anything like this exist?

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Granger Supply makes two different types:

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enter image description here

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  • $\begingroup$ Please include what its actually called. $\endgroup$ – Dave Butler Jul 11 '19 at 6:21
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    $\begingroup$ The round one is called A Steel Shaft Collar, Clamp, Threaded . The second one is called a "CADDY THREADED ROD NUT". They come in a number of sizes. $\endgroup$ – JACK Jul 11 '19 at 12:20
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    $\begingroup$ Also Dave, if you want a Rube Goldberg solution, you can cut a nut in half with a hack saw and then use a hose clamp to clamp the nut around the threaded rod. This works for light to medium applications. $\endgroup$ – JACK Jul 11 '19 at 15:02
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In the world of machining, a lathe uses a feature called a half-nut. It's two half-nuts mounted on a slide in which they are separated to disengage the carriage from the lead screw, or brought closer together to engage the carriage to the lead screw. This stops or starts movement of the cutting tool on the work piece.

lathe half nut

The image above comes from Mini-lathe.com website and shows a crude version, which is all that is needed to accomplish the above-described task. The release/activation mechanism moves the upper half downward onto the lead screw (aka threaded rod, specialty version) and the lower half upward.

There are as many versions of half-nuts as there are versions of lathes using them.

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Yes, a threaded tube that has been cut in half length-wise and clamped or joined to the threaded section with nuts and bolts or welded as suitable.

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