Bracco Posted May 3, 2007 Share Posted May 3, 2007 I am in the process of rebuilding brake calipers. I have separated the caliper halves. I know this isn't recommended but I needed to hone bores. I would like to verify the bolt sizes/specifications. Based on my measurements they are 7/16 by 2 1/4 UNF-20. I would assume the grade is 10.9, although the original headstamp does not identify the grade. As the brakes are rather important I would like to verify this information and know of any recommended sources for the bolts. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted May 4, 2007 Share Posted May 4, 2007 I think that they may be stretch bolts, although do not take this as gospel, that may apply to some calipers and not others. Chris Quote Link to comment Share on other sites More sharing options...
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