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Wheel stud thread specs ?

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Old Feb 13, 2011 | 11:18 PM
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Default Wheel stud thread specs ?

I have a couple of "tight" lug nuts and need to chase the threads before installing new lug nuts but I can't figure out what the threads are. Does anyone know what the die size would be to chase the threads on the studs? Thanks!
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Old Feb 14, 2011 | 12:33 AM
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2011 Shop manual says that they ( the bolts ) are M12 x 1.5
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Old Feb 14, 2011 | 08:42 AM
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Originally Posted by fmarshall
2011 Shop manual says that they ( the bolts ) are M12 x 1.5
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Old Feb 14, 2011 | 12:08 PM
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Originally Posted by cmonkey713
I have a couple of "tight" lug nuts and need to chase the threads before installing new lug nuts but I can't figure out what the threads are. Does anyone know what the die size would be to chase the threads on the studs? Thanks!
Remember one "chases" threads with a different tap or die than one cuts new threads. Tools designed for "chasing" threads remove a minimum of material in order not to effect the strength on the fastener. Thread chasers are available from a variety of sources, just be sure to use the proper tool.

Last edited by 9C1; Feb 14, 2011 at 12:10 PM. Reason: grammer
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Old Feb 14, 2011 | 07:44 PM
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Originally Posted by 9C1
Remember one "chases" threads with a different tap or die than one cuts new threads. Tools designed for "chasing" threads remove a minimum of material in order not to effect the strength on the fastener. Thread chasers are available from a variety of sources, just be sure to use the proper tool.
I had no idea there was such a thing. Does it look like a cutting die? and where can I get one?
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Old Feb 14, 2011 | 08:04 PM
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Studs are cheap. Just make sure you don't get ones that are longer than stock or you will have to remove the hubs and that is a big job because you have a steel bolt in an aluminum hub.


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Old Feb 15, 2011 | 07:17 PM
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Originally Posted by cmonkey713
I had no idea there was such a thing. Does it look like a cutting die? and where can I get one?
Summit has three pages of them:

http://www.summitracing.com/search/?...20chaser&dds=1

McMaster Carr sells sets of them. I would think they are available at a number of other places.
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Old Feb 16, 2011 | 09:44 PM
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Thanks everyone,I will hunt down a thread chaser.
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