Any issues with using a hardness tester for fool proof testing?
It would seem to work, but is there any chance that small amounts of zinc would be used in some weights, which wouuld increase hardness a little?
Most "stick on" wheel weights I just finished testing showed anywhere from less than 6 to 8 BHN. However, all the stick on wheel weights that match the image in the first set of photos, 3rd from the right in stick on lead picture section, measure 11.5 BHN, or around what you would expect for good clip on wheel weights. I had not seen any mention of stick on wheel weights being as good as clip on wheel weights, and it seemed most would simply throw the SOWW aside for soft lead applications. The weights obtained were from a new car dealership, and these 11.5 BHN made up around 20% of the total SOWW received that day.