i like that bolt. shape is perfect but it looks like it might be a few mm too big on the inside? just make sure it doesnt leak air. the top section of the forks is filled with air as another type of damping control... something about how much the gas compresses before it has to force the oil through the damping rod. anyway if it leaks air it wont work right and can leak fluid out too so just make sure to seal the bolt. edit: it looks like you may have already... hard to tell