These floor tom brackets were one of the biggest challenges. All 3 tom legs were wrapped with masking tape in an attempt to find some grip. As shown in the first & second pictures, the metal tabs inside these brackets were basically filed down over time by the tom legs. Without the tape, the tom would simply fall to the floor, even with the wing nuts cranked down tight. Being metric, the shell bolt pattern does not match anything I could find as a replacement. Used brackets would likely have the same issues.
After much trial and error, I found some metric stainless steel washers with holes slightly larger than the tom legs. I cut two washers for each leg as shown in picture 3. The washers fit tight against the bracket walls and snugly over the tom legs. After this repair, the brackets hold the tom firmly. I sit on the drum and it will not collapse.
Thanks for looking.
jim