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Old May 13, 2005 | 08:46 AM
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Default Front Crossmember Bolts

Hi guys, I'm replacing the front crossmember on my '71 and want to replace the bolts.



Could someone tell me what size I need, thanks guys.
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Old May 13, 2005 | 10:12 AM
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Any ideas would be good here guys, I only know metric.

I don't even know if they're UNF or UNC sorry I'm stupid european !

Last edited by Golden; May 14, 2005 at 06:01 AM.
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Old May 14, 2005 | 06:02 AM
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I don't need the exact bolt dimensions just the thread size, please Vette gurus.
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Old May 14, 2005 | 10:33 AM
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Hi

sorry I'm stupid european !

Autsch,

Take an old bolt to a mashine shop, they will tell you exactly whithin a couple of seconds what size, thread etc it is.

Günther
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Old May 14, 2005 | 11:09 AM
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Why not take the old bolt(s) to the hardware store? You'll not only be able to find out what size they are but while there you can buy new ones. Make sure they are the same grade, look at the bolt head and count the number of lines on it.
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Old May 16, 2005 | 10:44 AM
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Originally Posted by WESCH
Hi

sorry I'm stupid european !

Autsch,

Take an old bolt to a mashine shop, they will tell you exactly whithin a couple of seconds what size, thread etc it is.

Günther
I know I may be stupid but I'm not a complete idiot. The car was in parts when I got it and the only two bolts left in the frame are so rusty that I can't even get a diameter off them, let alone get a thread pitch gauge on them. They look like brown spikes.

All I want to know is whether the bolts are UNC or UNF and what size the thread is. Doesn't old Chevey stuff only use about 10 bolt sizes?
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