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Old Apr 29, 2008 | 11:12 AM
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Default Quick question.

...A quick one: what's the size of the thread of the stock bolts in a '77? I'm having a few probs with the nuts sent with my new composite larger minilites, they seem to be larger then they should, even if they screw well, the guy at the garage told me IF he applies max torque they won't hook perfectly...and it's already two sets arrived and tried.

Last edited by panic; Apr 29, 2008 at 11:17 AM.
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Old Apr 29, 2008 | 11:23 AM
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sorry to be a complete n00b but bolts for what?
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Old Apr 29, 2008 | 11:32 AM
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Originally Posted by corvettedreamz
sorry to be a complete n00b but bolts for what?
...for the wheels.
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Old Apr 29, 2008 | 12:31 PM
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7/16-20
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Old Apr 29, 2008 | 01:58 PM
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Originally Posted by bashcraft
7/16-20
what does the '20' describes? is it the length?
Sorry to bother you...Giu
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Old Apr 29, 2008 | 02:14 PM
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20 = thread pitch
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Old Apr 29, 2008 | 02:14 PM
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Thread count. 20 threads per inch.
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Old Apr 29, 2008 | 02:26 PM
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Originally Posted by PhyscoVette
20 = thread pitch
Is this the only standard size used or is it posible there could be another one for later models? like years 77'/up?
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Old Apr 29, 2008 | 02:40 PM
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Originally Posted by panic
Is this the only standard size used or is it posible there could be another one for later models? like years 77'/up?
This was the standard size for most all GM's of that era. Maybe a previous owner changed them.
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