Originally Posted by
Greenfieldja
Prevent this moving forward by greasing the bolts and then drip some candle wax into the recess for the allen wrench. The wax prevents dirt from compacting in the recess which reduces how far the allen wrench will fit...when the time comes, just take a lighter and melt the wax, the bolt head recess will be clean and unobstructed.
-J
Now there's a good idea.
Cleat bolt heads do get filled with crud. I always clean them as thoroughly as I can with a dental pick before even trying to fit a hex key.