I generally like to see 3 items before I put pen to paper on a distinction unless I am convinced something is what it is with one of something such as the early oil filter decal. Let's look at the oil filter bolt with the 14mm head which I've now seen 3 of. It's good to know what we are looking at given the number of "scammers" and "everything is sandcast" sellers out there. The 14mm oil filter bolt was a Honda recalled item, like the no-fin cast oil filter housing, however many of both survived and can be bought on eBay, swap meets etc., but how do you know what to look for. There are several clear differences between a genuine early bolt and a repop. There are a few other subtle differences but there are 3 easily spotted differences that are difficult to replicate, especially the bolt head bottom radius. Pictures tell a story better than words so enjoy. If members have different experiences please let us know.