we have been letting the odds and ends bolts off mainly the front end assembly and bumpers soak in the rust dissolver. a lot of rusty hardware off the car. hit me a day were other things keep me out of the shop so when we got back i decided to clean up some of this stuff. not a lot to do while cleaning but let your mind wander. I noticed that some of the stuff on the ends of the heads of the cap screws were casting or stamping marks made in the process. been a long time since I have seen this kind of pride in a company to mark their products. grade marks yes but nothing else. this time I let the stitch program overlap made a different picture