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Bolt Head Identification Marks

Bolt Head Identification Marks

Bolt Head Identification Marks


Does anyone recognize the following bolt head identification:

A large central "F" surrounded by 12 equally spaced radial dashes?


Doug E.

RE: Bolt Head Identification Marks

"F" is a grade 8.8 high tensile bolt.

RE: Bolt Head Identification Marks


Where can I find a listing of letter type head markings, preferably online. I would like to file it away.

RE: Bolt Head Identification Marks

I looked up the data for Ajax Fasteners at http://www.ajaxfast.com.au/AJAX.htm however bolt manufacturers data is where you'll find it.

RE: Bolt Head Identification Marks

See Thread194-81036 for head marking links...

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