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world famous bobski mystery thing, pic #312


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Old 05-17-2013, 07:45 PM   #31
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Quote:
Originally Posted by clr8ter
I think I know. We have used something similar at work. The piece of hardware it installs is like a rivet. It screws onto that threaded shank on the gun, and when you squeeze the handle, it collapses part of the hardware. When you unscrew the tool, you have a threaded "nut" crimped into the hole it was inserted in. They're used on aircraft, and other things, too. Honestly, I forget what they are called.
I vote for clr8ter! He had it pegged on the nose first! Good job!
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Old 05-18-2013, 12:18 AM   #32
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Thanks! Too bad I don't smoke cigars....though I do find them interesting, for some reason I have not figured out......

As far as I am aware....these things are used in only certain situations. Specifically, on airplanes because they are a higher strength fastener, which won't create cracks in the sheet metal, like rivets possibly may. On an airstream camper, I doubt it, because it's not critical, and would be WAY more expensive than rivets.
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Old 05-18-2013, 12:27 AM   #33
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do they still use zerk fittings on a/c?
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Old 05-18-2013, 12:32 AM   #34
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Don't know, I'm not a plane guy. I do know they still use a lot of zerks on all sorts of machinery. Trucks, industrial machinery, farm machinery, ATV's, snowmobiles, everything. If I had to guess, I'd say planes, too.....
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Old 05-18-2013, 07:19 PM   #35
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According to the mechcanic, they're not threaded, more like a ring shank nail for grip.........
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Old 05-18-2013, 08:47 PM   #36
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Okay, im confused. Has this item converted back to a mystery or what???
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Old 05-18-2013, 10:08 PM   #37
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and now back to our show....
313 is up.
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Old 05-18-2013, 10:18 PM   #38
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I'll be darned if I didn't come across some of these things today! I was summerizing the sleds, and there are a couple of these crimped into the plastic air box, as mounting points for the fuel shutoff, and something else.....

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Old 05-18-2013, 10:40 PM   #39
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ah haa!........
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