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I bought this wooden curtain pole at Argos, the pole comes in two parts to be joined together using a joining screw. I sawed one of the parts at the wrong extremity (the one with the hole for the joining screw) and then I made a hole that was too large at the other extremity.

Is there a simple way to join these 2 poles together, perhaps using some metal piece or something?

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2 Answers

up vote 2 down vote accepted

I'd use an insert nut and a hanger bolt. Almost any solution is going to require you to be able to drill two clean center holes.

Insert Nut Insert nut Hanger bolt

Above are two examples of insert nuts, you drill a hole larger than your bolt and insert this specialty nut to give you machine threads. (Similar to a tee nuts found in the bottom of chairs, couches, tables, etc except this can provide a flush (or past flush) mount and better for pull forces). The other side will have a hanger bolt, it has wood threads on one side and machine threads on the other. Just make sure to get matching/same sizes of insert nut and hanger bolt.

Installation

The insert nut should have a description of what drill to use, if it doesn't you should be able to Google it easily. Drill one piece's end to that size (pilot hole up to you), depth should be the greater of the two (insert nut or machine end of hanger bolt). Install insert nut with appropriate tools (Allen key, screw driver, etc)

Drill the other piece to fit the wood threads, most likely will have to gauge by hand holding the drill bit in front on the wood threads use the largest drill that hides 90-100% of the center without hiding any (or extremely little) of the threads. Again depth should be appropiate, the length of the wood thread side. Now the only really part tricky, inserting the hanger bolt. I'd recommend buying two nuts the same as the machine thread. Screw them both on the end then tighten them against each other. Use the far/top one to drive it in, then release the two nuts from each other and remove nuts. Slightly more difficulty, you can install the hanger bolt by inserting the machine thread into the finished piece and just rotate the other one on.

Put two pieces together if you haven't done so already.

This solution will allow you to make sure the connected rod is tight together as well as allow you to disconnect the two in case you ever want to.

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+1 The hard part will be making sure the holes are dead center and parallel to the length of the rod. Also make sure the hole on the nut is deep enough in case the hanger bolt, when inserted extends beyond the inside end of the nut. –  bib Aug 5 '13 at 12:44
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What I'd do is drill out the too large hole to make it large enough to take a dowel. You'll need to clamp the curtain pole to ensure you get a clean hole.

Then glue a dowel into hole and cut it off flush - use a hacksaw and then sandpaper to finish.

Leave this to dry and then drill a new pilot hole in the dowel to take the joining screw.

If you don't have the tools/expertise for this then using glue and matchsticks/wooden kebab sticks to fill the hole like a rawlplug should work as well. This has the added advantage that you might not need to drill a new pilot hole - just screw into the mass of matchsticks. However this won't be as strong as using dowel.

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+1 Also some cheap or throw-away chop sticks are made of bamboo and serve as good fillers. They are tough and do not strip easily. –  bib Aug 5 '13 at 12:47
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