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aircraft type steel tubing I just saw this term used in a posting on door lock set screws but I am not familiar with that term. I'm looking for a spacer/joiner tube with interior threads for a 3/16 OD rod. My local Ace guy can't help me. I am not sure he even understands me. I am attempting to cut a looooong "throttle rod" with the spring loaded ends and make a shorter adjustable one out of it. I do not know the correct nomenclature for the piece of interior threaded tubing I am looking for. Can anyone help with the nomenclature and source of such an animal? I hope I am clear as to what I am looking for and that someone can help me with a source. I just need a piece about 3" long. Thanks, Lawson
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Re: aircraft type steel tubing Lawson , is this in the Ballpark as to what you are looking for ?
Try this link.... https://www.mcmaster.com/threaded-tubes/length~3-16/ |
Re: aircraft type steel tubing |
Re: aircraft type steel tubing Thread sizes smaller than 1/4" are designated by a numerical size. So, except for Home Depot hardware, there isn't really a "3/16" thread size. That said, #10 threads are very close to being 3/16. For most US thread sizes, there are "coarse" threads and "fine" threads. #10 coarse threads are 24 threads per inch. Fine threads are 32 threads per inch. For each of these size/pitch combinations, there's a recommended "tap drill" size which will result in a good thread when tapped. For a #10-24 tap, using a #25 (.149) tap drill is recommended. If you use a smaller drill, it might be difficult to tap. If you use a slightly larger drill, it will be much easier to tap but the resulting thread might not have the desired strength to prevent being pulled out. Likewise, a #10-32 thread recommends using a #21 (.159) tap drill. Simplifying things, if you're looking for a tubing size to use without having to drill anything, try to find something with a 5/32 diameter. I'm thinking that 3/16 tubing for brake lines is going to be too small and 1/4 brake line tubing would be too big. Maybe you could braze a piece of 3/16 tubing into a length of 1/4", drill that out and tap it.
Sorry for the long winded explanation but.... Just saw Dan's response. Looks like he hit the nail on the head! |
Re: aircraft type steel tubing Look for coupling nuts at the hardware store
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Re: aircraft type steel tubing If you are joining threaded rod you can use "threaded rod coupler nut's". Any good hardware store has them and McMaster-Carr also has them.
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Re: aircraft type steel tubing 1 Attachment(s)
Like Pete said your not going to find anything with 3/16" threads. 3/16" is .1875
a #8 screw is .164 and a #10 is .190. The 3/16" might work if it is slightly oversize. I think this is what you are looking for. https://www.jegs.com/i/JEGS/555/157714/10002/-1 |
Re: aircraft type steel tubing Lawson, if you google McMaster-Carr 90264A425, It's the same as what Bob C. is showing but smaller in length.
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Re: aircraft type steel tubing Hey, "All Y'all". As I have often said, this site is truly awesome, with a whole slew of knowledgeable folk just chomping at the bit to help others with all sorts of questions relating to flathead Fords, even the minutia. Thanks again to all who responded. McMaster Carr completely slipped my mind, and I have gone to them many times for many things. I'm calling them first thing in the morning.
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Re: aircraft type steel tubing Lawson >>>My local Ace guy can't help me. I am not sure he even understands me.>>>
I seem to vaguely recall a fix to similar dilemma not too long ago. Yep. I googled it. And here it is. Fellow said It should be easy enough to cut my NOS 18+ inch rod in two, thread it and use a threaded rod union to connect the two pieces back together. https://www.fordbarn.com/forum/showthread.php?p=2071848 |
Re: aircraft type steel tubing Quote:
Hey Jack E/NJ. Thanks for the refresher course on just how much, and how quickly the aging mind forgets. Maybe I just need to hit the archives to see if I have previously asked a question before asking it, again. ROFLMAO. Lawson A caveat if I might. My first posting was about how to make an adjustable rod where my current post is about where to obtain it the part. (Does that restore at least a part of my credibility? LOL |
Re: aircraft type steel tubing There is always this. They are slightly adjustable.
https://www.speedwaymotors.com/Searc...d%20connectors |
Re: aircraft type steel tubing But didn't Dan get the answer back in post #3? the 10/24 internally threaded rod? Maybe I'm missing something. It happens a lot :)
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Re: aircraft type steel tubing Unlike internally threaded tubes, internally threaded rods haven't been invented yet. 8^)
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Re: aircraft type steel tubing In aerospace hardware, a -3 or 3/16" bolt has a 10/32 thread. There are some Heim type spherical rod ends that are actually made with that small a thread and are generally used in engine throttle controls. Most are sizes 1/4-28 or larger but the 10/32 are the smallest ones I've seen.
When folks refer to aircraft steel tubing, they are generally referring to thin wall chrome molly steel structural tubing used to build aircraft tube frame structures for fuselages and engine mounts. Each successively larger size will fit inside the next size up. Wall thickness varies so most ID/OD sizes follow the wall thickness. |
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Re: aircraft type steel tubing don't you want a turnbuckle so that when you turn it one way it gets shorter, turn it the opposite it gets longer?
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Re: aircraft type steel tubing 1 Attachment(s)
Lowes has just what you want Lawson. For a $1.98. It's an extruded threaded tube that looks like a turnbuckle. They have other sizes too. You can have a long chat with the nice lady on line to try to get whatever you want. 8^)
https://www.fordbarn.com/forum/attac...1&d=1637008425 |
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