@DW@Horton I ride said brand of ski in photo, and can tell you, although their advertising says "brass" on their inserts - they are not. I have personally replaced inserts on their ski, and they are some type of pot metal, hence the corrosion with a stainless fastener. I have even sent a ski in to have the inserts replaced, and one of the new inserts gave out. After pulling out the bad insert, it revealed that the old insert was not fully removed from the ski prior to putting the new insert in.......if you want it done right......