Review on Uxcell Thread Protectors 8 Inch Flexible by Daniel Steele

Ordered 6.5mm to cover 1/4 screw threads and they didn't fit. This turned out to be a lucky coincidence as I originally had acorn nuts on the ends of the bolts and it turned out that because they stretch a bit they fitted perfectly (emphasis on perfect) onto the acorn nuts. This serves my purpose of protecting my table from threads and looking good.