machinest, metalworkers, fabricators, need help finding product ..

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dobro1956
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machinest, metalworkers, fabricators, need help finding product ..

Post by dobro1956 » Fri Feb 22, 2019 1:07 am

I'm hoping someone out there can help. I am repairing my KR Wilson pan jig. It has 10 locating pins that are 5/16 diameter on one end and 3/8 diameter on the other end They are about 1 inch long. Does anyone make a step-pin or something that has those 2 different diameters. I can machine them myself, but if there is something that is already machined to those 2 different diameters, that will save me a lot of work ... My old equipment will require me to make them one at a time. I do not even know the term to use in searching for something like that. All I can think of is step-pin or step-dowel . ??? Any help will be appreciated.

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Ruxstel24
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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by Ruxstel24 » Fri Feb 22, 2019 4:04 am

I Googled "stepped dowel pins"...

https://us.misumi-ec.com/vona2/detail/110300256840/

I found a stepped threaded stud, years ago in the bolt cabinet at a VW dealership I worked at.
The threads were gone in the aluminum head on the rear of my H-D, where the exhaust pipe bolted on. Was an Allen head bolt, 5/16", I found 8mm/10mm stepped studs and rethreaded the head for it and used a lock nut. Still in there 20 years and 60,000 miles later. 8-)

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Mark Nunn
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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by Mark Nunn » Fri Feb 22, 2019 9:03 am


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dobro1956
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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by dobro1956 » Fri Feb 22, 2019 10:09 am

I may have not been clear on what I'm needing. I do not need a threaded stud. I need both ends to be smooth. The term may be "step dowel pin". Here is a diagram of what I need. If I could find a machine shop with CNC to make them at a somewhat reasonable price I would got that way...
Attachments
zzzzzzzzzzzzzzz.jpg


mike atkins
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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by mike atkins » Fri Feb 22, 2019 10:17 am

tooling pins or locating pins . google carr lane

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Mark Nunn
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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by Mark Nunn » Fri Feb 22, 2019 10:32 am

The link I posted was for the pin in your drawing. It's not threaded.

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dobro1956
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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by dobro1956 » Fri Feb 22, 2019 9:33 pm

Mark, Thanks for the link... Its he## getting old. I never even saw the link. I just saw Mcmaster Carr. You have made my day, Thanks for telling me to look again ..... :D :D :D


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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by Marc Roberts » Fri Feb 22, 2019 11:02 pm

McMaster Carr has a mind boggling inventory. Everyone on this forum should bookmark its site.


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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by D Stroud » Sat Feb 23, 2019 6:51 am

What Marc R. said. McMaster Carr is mind boggling! Dave
1925 mostly original coupe.


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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by Adam » Sat Feb 23, 2019 8:26 am

Here is the mcmaster drawing. Note the small end will be a little over 5/16”, while the large end will be slightly under 3/8”.
01EB3807-B415-4D5E-ABD9-7B4CBC51E53A.jpeg


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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by Jerry VanOoteghem » Sat Feb 23, 2019 10:30 am

McMaster Carr Nut & Bolt Company. An original supplier to Ford Motor Co., in the Model T era!

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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by dobro1956 » Sat Feb 23, 2019 3:21 pm

The Mcmaster Carr part and my part I need are "about" 1/2 a thou. (.0005) different. The less than a thou bigger on the 5/16 end is to allow the pin to be driven into place and not fall out. As to the 3/8 end being about 1/2 to 3/4 thou different. I do not think Ill ever be able to "beat into submission, with a BFH." a model T pan anywhere near close enough to worry about a 1/2 a thou.... Straightening a model T pan is a somewhat violent affair. :!: :!: :lol:

This is one of the reasons why the forum is so usefull. The wealth of knowledge and contacts to get things, or get things done is amazing. I could not have machined these myself to the tolerance the "store bought parts" have. I can work to .001 pretty easily with my antique/ancient machine shop tools, but a 1/2 a thou is a struggle ... Not to mention the time saved. I bought enough to fix my KR Wilson pan jig and also got a few extra for about 41.00 delivered to my door. Im as frugal as anyone, but sometimes it is best to "choose my battles" Thanks again for all the input ...

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Re: machinest, metalworkers, fabricators, need help finding product ..

Post by Sean Butler » Sat Feb 23, 2019 3:25 pm

When you get that pan jig all purdied up, be sure to share some pictures!
Sean Butler
Huntington Beach, CA

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