connecting rod bolts replacements.. need help

Posted by Rick7r on Jun 29, 2015; 6:09am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/connecting-rod-bolts-replacements-need-help-tp4057324.html

ok, so this a rehash of the old topic on replacing vs. reusing connecting rod bolts on rebuilds. i'm doing my first complete rebuild on a 1972 cb750 k2. i'm replacing the bolts for peace of mind. needless to say, can't seem to find new bolts.
my first question is, i've searched around and heard that F model cb750 bolts fit as well. which i ended up buying from ebay, which were genuine honda parts. it ended up not fitting about 1 mm off.
second question pertains to the first. that particular part has part number 13213-KV0-000 (supposedly from roughly 1977 F model)  but when i look on partzilla, there is two option of ordering the previously mentioned part number versus 13213-410-003. is there a difference?
so then which model and year would be compatible?
any help is appreciated.