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View Full Version : Strange Head Markings on Carb Bolts


69VN
02-24-2013, 04:54 PM
Could anyone help me identify what the head markings on these carburetor mounting bolts mean? I pulled these out of old storage the other day and just out of curiosity was wondering about the small letter "H" surrounded by a big letter "C" (with three hash marks) embossed markings on the tops of these bolts. Is it anything significant? Any help on this would be great! Thanks!
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http://www.yenko.net/attachments/usergals/2013/02/full-13015-2998-072.jpg
http://www.yenko.net/attachments/usergals/2013/02/full-13015-2999-073.jpg
http://www.yenko.net/attachments/usergals/2013/02/full-13015-3000-074.jpg

rubbinisracing
02-24-2013, 10:01 PM
Cold Heading, Detroit MI, Gr. 5 SAE