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Old April 17th 17, 11:25 PM posted to rec.bicycles.tech
James[_8_]
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Posts: 6,153
Default Selecting An Appropriate Bolt

On 18/04/17 07:51, wrote:

An M6X10 is the metric "functional equivalent" of a 1/4" UNC bolt.
It's dimensions and strength are very close. Being a metric bolt it
will be neither a Grade 5 nor a Grade 8. - it will be a class 8.8 or
10.9 or 12.9 An 8.8 is the metric "functional equivalent" to a grade 5


And of course there are bolts with lesser minimum tensile stress than
800MPa. Class 4.6 for 400MPa, for example.
--
JS
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