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Home > Classifieds > Astromart Classifieds > Telescope Making > Classified #248841

For Sale: 3/4" Threaded Inserts

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I have 3/4" threaded tube inserts with 1/4x20 threads. They are technically for 16/18 guage aluminum tube, but after a few moments with a dremel tool they fit great into thicker walled 'Ace Hardware' 3/4" diameter aluminum tube. Great for a Kreig/Barry style secondary ring assembly with lighter and smaller 3/4" aluminum tubing. $1.25 each. You pay shipping. I have about 40 for sale.

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