My Ti wheel bolts are anodised. I was told that this keeps them from galling. I have taken them on and off 5 or 6 times and each time torqued them to 85lb ft., they show no galling and look pretty much new. A tiny bit of color change on the engaged threads and the cone(to be expected for any material, steel included). Ferrari uses titanium for wheel bolts on quite a few of their models. I have not heard of any problems. Porsche still uses aluminum wheel nuts on some of their cars. :shrug:just a word of warning we used ti bolts on our race car... the galling tendency of titanium is greater than that of stainless steel. be careful in applications where parts rotate about the axis of the bolt, also bolts that are removed and re-torqued several times ie- wheel bolts.