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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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Weird hardware request
I've got a project that is calling for internally and externally threaded
stainless tubing. I'm having a hard time finding what I need, so I thought I'd ask here before I draw up a plan and get a quote from a local machine shop. What I need is something like this: | \\ | | // | | // | | \\ | | \\ | | // | | // | | \\ | With the inner hole on the externally threaded tubing being .055-.070 and the thread size being 8-32 (one size up or down would be fine, but 10-32 is pushing it) and the OD of the internally threaded tubing being about 1/4". I need them about 1/2" long, though longer is fine, as I can cut them down to size. I'm looking for about 300-500 of each. Thanks for any help! Also, I'm looking for either split brass tubing, or bead rolled brass strip. It need to go on/around 22ga stainless. Say between 1/8"-1/4" OD. The final effect is something like this: http://www.sunshadowdesign.com/galle...et/duncan2.jpg (Not my work, just found something of similar style) Thansk again! Todd |
#2
Posted to rec.crafts.metalworking
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Weird hardware request
On Tue, 12 May 2009 13:00:18 +0000, Todd Rich wrote:
I've got a project that is calling for internally and externally threaded stainless tubing. I'm having a hard time finding what I need, so I thought I'd ask here before I draw up a plan and get a quote from a local machine shop. What I need is something like this: | \\ | | // | | // | | \\ | | \\ | | // | | // | | \\ | With the inner hole on the externally threaded tubing being .055-.070 and the thread size being 8-32 (one size up or down would be fine, but 10-32 is pushing it) and the OD of the internally threaded tubing being about 1/4". I need them about 1/2" long, though longer is fine, as I can cut them down to size. I'm looking for about 300-500 of each. Thanks for any help! Also, I'm looking for either split brass tubing, or bead rolled brass strip. It need to go on/around 22ga stainless. Say between 1/8"-1/4" OD. The final effect is something like this: http://www.sunshadowdesign.com/galle...duncancoronet/ duncan2.jpg (Not my work, just found something of similar style) Thansk again! Todd Find the appropriate sized tubing and thread it yourself? How deep do you need the threads on the inside-threaded part? Threading some varieties of stainless is a real treat, if you like cussing and broken taps. I'd check McMaster and other sources out there for what alloys are available, then I'd check back here for what may be machinable. If your outer-threaded parts are short enough you may be able to drill out screws. -- http://www.wescottdesign.com |
#3
Posted to rec.crafts.metalworking
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Weird hardware request
Tim Wescott wrote:
(snip) Find the appropriate sized tubing and thread it yourself? Thought about that, but the time involved for me to do it by hand (no lathe) would make it unprofitable. How deep do you need the threads on the inside-threaded part? We were thinking all the way, but that was just a preference. Threading some varieties of stainless is a real treat, if you like cussing and broken taps. I'd check McMaster and other sources out there for what alloys are available, then I'd check back here for what may be machinable. If your outer-threaded parts are short enough you may be able to drill out screws. I think I've convinced my partner on this project to go with brass now. |
#4
Posted to rec.crafts.metalworking
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Weird hardware request
--Forget what they're called but you might want to get in touch with
the folks who make things like nutserts. I've seen these things used to install a bolt-to point in soft materials like endgrain wood, etc. -- "Steamboat Ed" Haas : Imagine what I could do if Hacking the Trailing Edge! : I knew what I was doing... www.nmpproducts.com ---Decks a-wash in a sea of words--- |
#5
Posted to rec.crafts.metalworking
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Weird hardware request
"Todd Rich" wrote in message ... I've got a project that is calling for internally and externally threaded stainless tubing. I'm having a hard time finding what I need, so I thought I'd ask here before I draw up a plan and get a quote from a local machine shop. What I need is something like this: | \\ | | // | | // | | \\ | | \\ | | // | | // | | \\ | With the inner hole on the externally threaded tubing being .055-.070 and the thread size being 8-32 (one size up or down would be fine, but 10-32 is pushing it) and the OD of the internally threaded tubing being about 1/4". I need them about 1/2" long, though longer is fine, as I can cut them down to size. I'm looking for about 300-500 of each. Thanks for any help! Also, I'm looking for either split brass tubing, or bead rolled brass strip. It need to go on/around 22ga stainless. Say between 1/8"-1/4" OD. The final effect is something like this: http://www.sunshadowdesign.com/galle...et/duncan2.jpg (Not my work, just found something of similar style) Thansk again! Todd Isn't what you are describing called a "thread repair insert"? Ivan Vegvary |
#6
Posted to rec.crafts.metalworking
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Weird hardware request
Ivan Vegvary wrote:
(snip) Isn't what you are describing called a "thread repair insert"? Ivan Vegvary Close, but not quite. The press in inserts are close to what I want for the external part, but threaded both sides versions aren't quite what I need. |
#7
Posted to rec.crafts.metalworking
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Weird hardware request
If you decide to go custom machine, let my son have a shot at it. He just
got a pink slip this afternoon. laid off for six weeks. My CHNC lathe could turn these right out. Karl |
#8
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Weird hardware request
Karl Townsend wrote:
If you decide to go custom machine, let my son have a shot at it. He just got a pink slip this afternoon. laid off for six weeks. My CHNC lathe could turn these right out. Karl Hey Karl, I have a small job I've been wanting to have made. If you would like to discuss it, drop me a line. Richard |
#9
Posted to rec.crafts.metalworking
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Weird hardware request
Karl Townsend wrote:
If you decide to go custom machine, let my son have a shot at it. He just got a pink slip this afternoon. laid off for six weeks. My CHNC lathe could turn these right out. Karl Replied privately. |
#10
Posted to rec.crafts.metalworking
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Weird hardware request
On Tue, 12 May 2009 13:00:18 +0000 (UTC), the infamous Todd Rich
scrawled the following: I've got a project that is calling for internally and externally threaded stainless tubing. I'm having a hard time finding what I need, so I thought I'd ask here before I draw up a plan and get a quote from a local machine shop. I've never seen that, at least that I can recall. Sorry. But I have a smartarse comment below for you. What I need is something like this: | \\ | | // | | // | | \\ | | \\ | | // | | // | | \\ | Kewl, man. Ascii-paisley! -- No matter how cynical you are, it is impossible to keep up. --Lily Tomlin |
#11
Posted to rec.crafts.metalworking
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Weird hardware request
Todd Rich wrote:
I've got a project that is calling for internally and externally threaded stainless tubing. I'm having a hard time finding what I need, so I thought I'd ask here before I draw up a plan and get a quote from a local machine shop. What I need is something like this: | \\ | | // | | // | | \\ | | \\ | | // | | // | | \\ | Most of that part is called an: "Half inch long 8-32 hex standoff" They are available in aluminum, brass and stainless. Buy a bunch and send them to a guy with a lathe to cut the external thread, would be my advice. Have a look at the 1923B for example: http://www.keyelco.com/products/specs/spec18.asp --Winston -- Don't *faff*, dear. |
#12
Posted to rec.crafts.metalworking
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Weird hardware request
Winston wrote:
Todd Rich wrote: I've got a project that is calling for internally and externally threaded stainless tubing. I'm having a hard time finding what I need, so I thought I'd ask here before I draw up a plan and get a quote from a local machine shop. What I need is something like this: | \\ | | // | | // | | \\ | | \\ | | // | | // | | \\ | Most of that part is called an: "Half inch long 8-32 hex standoff" They are available in aluminum, brass and stainless. Buy a bunch and send them to a guy with a lathe to cut the external thread, would be my advice. Have a look at the 1923B for example: http://www.keyelco.com/products/specs/spec18.asp --Winston Actually, that looks just about perfect. They even have a part builder. I'm giving Karl first shot, but if not, looks like this place will have what I need. Thank you! Todd P.S. The part that needs an external thread also needs a smooth through hole in the center. |
#13
Posted to rec.crafts.metalworking
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Weird hardware request
Todd Rich wrote:
(...) P.S. The part that needs an external thread also needs a smooth through hole in the center. Ah! Now I see what you are doing. Just through - drill these in a lathe 'soft collet' for the inside part: http://store.hamiltonmarine.com/browse.cfm/4,13248.html Your pilot hole is the center of the cup. --Winston -- Don't *faff*, dear. |
#14
Posted to rec.crafts.metalworking
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Weird hardware request
On May 12, 6:00*am, Todd Rich wrote:
I've got a project that is calling for internally and externally threaded stainless tubing. *I'm having a hard time finding what I need, Others have suggested buying massproduced spacers and adding external threading; in terms of a short shop job, you could also buy massproduced allthread rod (1/4-28 stainless) and drill/tap a soft 5C collet to hold little bits of it for drilling/threading in a lathe. It might be easier to hold by the big external (threaded) surface and do the small hole, than to hold it by the hole and thread the outer diameter. |