Re: rad splasher bolts/speednuts
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Home away from home
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Here is one source that might provide some clues.
The 5/16 - 10 bolts used for the splasher have an Acme (Square) thread Spaenaur
Posted on: 2012/7/31 21:16
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Re: rad splasher bolts/speednuts
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Forum Ambassador
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The screws for the top radiator splasher and the speednuts that go on the grille bars, front fenders, and core support aren't your run-of-the-mill hardware.
I picked up several brand-new screws from Gary Thomas at Perrysburg about 15 years ago. IIRC, they looked like an Acme type thread. Can't find anything online in that regard, now. The OE speednut (P/N 448210) was made of thicker metal, but they seem to break easily. Fastenal shows a different type of "spring nut" with a 5/16-10 thread: http://www.fastenal.com/web/products/detail.ex?sku=37933 ...from the Au-Ve-Co line, but not sure if the panel range is sufficient for the grille bar tabs. Here's a listing from eBay: http://www.ebay.com/itm/nos-5-16-10-steel-sheet-metal-screw-j-nuts-Clips-set-of-10-ten-/350584158270?pt=Vintage_Car_Truck_Parts_Accessories&hash=item51a071b83e&vxp=mtr ..that looks similar to my recollection of the OE speednut, but thinner metal (perhaps spring steel). Still concerend about the panel range.
Posted on: 2012/7/31 21:20
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Re: rad splasher bolts/speednuts
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Thanks, they mention the 5/16-10 screw but don't list it.
Posted on: 2012/7/31 21:28
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Re: rad splasher bolts/speednuts
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Thanks Brian, I picked up some at Perrysburg myself for Best Other. Now I would like to use same on the Caribbean. The speednut that Packard used is unlike anything else I've seen.
Posted on: 2012/7/31 21:30
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Re: rad splasher bolts/speednuts
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Forum Ambassador
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looks like this
Posted on: 2012/7/31 21:37
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Re: rad splasher bolts/speednuts
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Forum Ambassador
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Screws I never did find. I had mine cad plated along with about all the other screws. Those few might be an option you could try with one of Caswells or Eastwoods small home kits and then give a report on how it worked.
That ebay link Brian posted is probably the closest you will find in small quantity for the speednuts. Full boxes you might even find locally at an Auveco distributor. I used a slightly different one with a longer center to folded edge but the other specs are the same as these. The size to hole is OK at 1/2 inch and panel thickness is good for the pot metal (around .065 - .070 - tight but goes) and fine for sides which is thinner sheet metal. The issue is the top brace across radiator. That is about .120 and while they might possibly be expanded or stretched, I used the originals across there. Don't know if these will weaken or snap when stretched since the leg is so short. Attach file: ![]() ![]()
Posted on: 2012/7/31 21:46
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Howard
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Re: rad splasher bolts/speednuts
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Home away from home
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Randy. I've used these with success. Not Packard perfect BUT useable.
Posted on: 2012/7/31 21:54
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