Bolt Head Identification Marks

[dougember]

Does anyone recognize the following bolt head identification:

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

Regards,

Doug E.

 

[BrianR]

"F" is a grade 8.8 high tensile bolt.

 

[xs650]

BrainR,

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

 

[BrianR]

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.

 

[Kenneth]

See thread194-81036 for head marking links...