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TC Bolt thread and length????

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Old May 17, 2007 | 03:05 PM
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1fastz28nx's Avatar
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Default TC Bolt thread and length????

I need to know what the TC bolt thread is and the proper length for a TCI Flexplate and a Yank Converter. I still have to order the flexplate so I can't just go out and measure it. Just wanted to save some money on shipping...

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Old May 18, 2007 | 04:41 PM
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the threads are 12mm x 1.5
the length im using is 20mm
dont forget you need grade 8
and dont buy the ARP converter bolts because they arent long enough with that flexplate

i picked em up at the local Ace Hardware for $1 each.
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Old May 18, 2007 | 04:58 PM
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Metric bolts aren't 'graded' like grade 5, grade 8, etc.
A metric bolt equal or stronger than a grade 8 will have the number 10.9 on the head.
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