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Old 11-10-2008, 03:08 PM   #1
sti robot
Scooby Specialist
Member#: 110932
Join Date: Mar 2006
Chapter/Region: SCIC
Location: San Diego
2012 STI hatch

Default Thread pitch for rear brembo caliper mount bolt

Is it M8x1.50 or M8x1.25?

M8x1.25 is the standard thread pitch you find an M8 bolt in. For some reason I think I tested it at the hardware store the other day and found that it was an M8x1.50 by comparing the other mount bolt. (Now I'm not in possession of the bolt, but I do have the caliper. The car and bolts are about 1 hour away.)

Bolt is seized...caliper needs to be helicoiled, etc.
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Old 11-10-2008, 05:39 PM   #2
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Join Date: Nov 2005
Location: Melbourne, Australia
MY07 WRX Wagon


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Old 11-10-2008, 06:32 PM   #3
Ian Godney
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Member#: 41573
Join Date: Aug 2003
Location: Wales , UK
1999 Subaru RB5



The bolts size is M10 x 1.5mm , its not 8mm

Cheers Ian
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