When I bought my FatBoy the owner had some assorted chrome goodies in a bag. There are a couple chrome bolt covers that are different then the usual chrome caps for engine bolts (primary cover bolt size). These slide over the allen bolts and have an expanded bottom that covers the lock washer. The top is open and a chrome button is inserted into the top of the allen bolt. The two pieces make for a very nice finished look, as the lock washer is hidden. I have not been able to find them. Anyone know where to look? Thanks.