Thread: Any idea what 'class 10.9' means in a black metric 8x125mm two-inchbolt?
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Bob Stevens Bob Stevens is offline
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Default Any idea what 'class 10.9' means in a black metric 8x125mmtwo-inch bolt?
On Mon, 17 Sep 2012 18:44:18 -0500, dpb wrote:

Same as SAE Class 8. 8.8 is Class 5

Here is a picture of the two "ISO Class 10.9" bolts I bought:
http://www2.picturepush.com/photo/a/...mg/9740235.jpg

Is there any special reason for them being black?

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