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TR2/3/3A Distributor Clamping Plate Studs

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af3683

af3683

Jedi Trainee
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Does anyone know the size of the 2 studs that secure the distributor clamping plate ? One of the vendors looked it up and sent me the wrong ones. Thanks.

Art
 
On the engine I just took apart, they are 0.875 long, quarter-inch UNF thread on top and UNC on the part that threads into the pedestal. The latter part is 0.375 long. There is about 1/8 inch unthreaded length between the two sections.
 
Steve,

Thank you very much. Maybe I can go pick one up from my local hardware store or let the vendor know the size. I do have one stud but can't get the nut off as there is nothing to hold the coarse threaded end with. Thanks again.

Art
 
I was wondering if anyone has purchased new Distributor Clamping Plate Studs and if so where you bought them. The Big 3 vendors apparently do not stock these anymore. Thanks.

Art
 
Arrow Bolts, Grainger, MSC, The Bolt Depot...there are many others. Fortunately this is not an odd thread size.
 
The coarse threads on those studs are pretty short as I recall. Might not be enough room to get two nuts on there.

If that is the problem, take a single nut and cut through one side of it. A Dremel tool with abrasive cutoff blade makes short work of this, but it can be done with a hacksaw and patience.

Place the split nut on the threads, then clamp it there with vise grips or your bench vise.

After removing the other nut, and releasing the pressure from the split nut, it should come off easily.
 
I'm not familiar with Arrow Bolts, but I didn't have any luck finding 1/4" mixed thread studs at MMC, MSC or Grainger.

You may be stuck either using 1/4-20 on both ends (but I really hate installing hardware with the wrong thread) or making your own. Making your own does involve some tools and time, but isn't difficult. And its easy to start over if need be.
 
McMaster shows a few. Don't know if any of the lengths will work.

[h=3]Hex Drive Threaded Rods[/h]
94358a330c1-b01s.png





A hex drive on one end allows these rods to be turned with a hex key for ease of installation. Use them to connect parts with coarse threads to parts with fine threads. They're high-strength black-oxide steel and corrosion resistant in dry environments.
CADIconForCpy.png
For technical drawings and 3-D models, click on a part number.

[TABLE="class: ItmTbl"]
[TR]
[TH="class: ItmTblColHdrSpecEnd ItmTblColSuperHdrAlign PivotHdr, colspan: 2"]Thread
(A)

[/TH]
[TH="class: ItmTblColHdrSpecEnd ItmTblColSuperHdrAlign, colspan: 2"]Thread (B)

[/TH]
[TH="class: ItmTblColSuperHdrAlign, colspan: 1"][/TH]
[TH="class: ItmTblColSuperHdrAlign, colspan: 1"][/TH]
[TH="class: ItmTblColSuperHdrAlign, colspan: 1"][/TH]
[TH="class: ItmTblColSuperHdrAlign, colspan: 1"][/TH]
[TH="class: ItmTblColSuperHdrAlign, colspan: 1"][/TH]
[TH="class: ItmTblColHdrEndPrice ItmTblColSuperHdrAlign, colspan: 1"][/TH]
[/TR]
[TR]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrRelSpecMinPivotIndent NoWrapCell, colspan: 1"]Size[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrSpecEnd NoWrapCell, colspan: 1"]Lg.[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrRelSpec NoWrapCell, colspan: 1"]Size[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrSpecEnd NoWrapCell, colspan: 1"]Lg.[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrSpecInterior NoWrapCell, colspan: 1"]Lg.[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrSpecInterior NoWrapCell, colspan: 1"]Drive
Size[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrSpecInterior NoWrapCell, colspan: 1"]Tensile
Strength, psi[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrSpecInterior NoWrapCell, colspan: 1"]Hardness[/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdr NoWrapCell, colspan: 1"] [/TD]
[TD="class: ItmTblBaseHdrBorderCell ItmTblColBaseHdrEndPrice NoWrapCell, colspan: 1"]Each[/TD]
[/TR]
[TR]
[TH="colspan: 10"]Black-Oxide Alloy Steel
[/TH]
[/TR]
[TR]
[TD="class: ItmTblCellIndentPivotMin ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-20[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]3/8"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-28[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]7/16"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]1"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]3/32"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]150,000[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpecBefrPartNbr ItmTblContentCell NoWrapCell, colspan: 1"]Rockwell C38[/TD]
[TD="class: ItmTblCellPartNbr ItmTblColSpacePartNbr ItmTblContentCell NoWrapCell"]94358A110[/TD]
[TD="class: ItmTblCellPrce ItmTblColSpacePrceAftrPartNbr ItmTblColSpacePrceTblEnd ItmTblContentCell NoWrapCell, colspan: 1"]$3.02[/TD]
[/TR]
[TR]
[TD="class: ItmTblCellIndentPivotMin ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-20[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]3/8"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-28[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]3/4"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]1 1/4"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]3/32"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]150,000[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpecBefrPartNbr ItmTblContentCell NoWrapCell, colspan: 1"]Rockwell C38[/TD]
[TD="class: ItmTblCellPartNbr ItmTblColSpacePartNbr ItmTblContentCell NoWrapCell"]94358A120[/TD]
[TD="class: ItmTblCellPrce ItmTblColSpacePrceAftrPartNbr ItmTblColSpacePrceTblEnd ItmTblContentCell NoWrapCell, colspan: 1"]3.43[/TD]
[/TR]
[TR]
[TD="class: ItmTblCellIndentPivotMin ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-20[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]3/8"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-28[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]1"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]2"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]3/32"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]150,000[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpecBefrPartNbr ItmTblContentCell NoWrapCell, colspan: 1"]Rockwell C38[/TD]
[TD="class: ItmTblCellPartNbr ItmTblColSpacePartNbr ItmTblContentCell NoWrapCell"]94358A130[/TD]
[TD="class: ItmTblCellPrce ItmTblColSpacePrceAftrPartNbr ItmTblColSpacePrceTblEnd ItmTblContentCell NoWrapCell, colspan: 1"]3.84[/TD]
[/TR]
[TR]
[TD="class: ItmTblCellIndentPivotMin ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-20[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]3/8"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpec ItmTblContentCell NoWrapCell, colspan: 1"]1/4"-28[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceRelSpecEnd ItmTblContentCell NoWrapCell, colspan: 1"]1"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]3"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]3/32"[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpec ItmTblContentCell NoWrapCell, colspan: 1"]150,000[/TD]
[TD="class: ItmTblCellSpec ItmTblColSpaceSpecBefrPartNbr ItmTblContentCell NoWrapCell, colspan: 1"]Rockwell C38[/TD]
[TD="class: ItmTblCellPartNbr ItmTblColSpacePartNbr ItmTblContentCell NoWrapCell"]94358A140[/TD]
[TD="class: ItmTblCellPrce ItmTblColSpacePrceAftrPartNbr ItmTblColSpacePrceTblEnd ItmTblContentCell NoWrapCell, colspan: 1"]4.54[/TD]
[/TR]
[/TABLE]
 
D'oh!
 
Thank you all for your help. Can't seem to find any that are .875 in length. Rather that attempt any modifications, does anyone happen to have spares that they would not mind parting with ? Thanks.

Art
 
Some Auto parts stores have this type of stud in their blister pack bins.

Our ACE hardware has a great selection of special screws and studs.

David
 
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