I'll second this recommendation. After having my left crankarm loosen at the start of the last lap at a CX race in Clarksburg, then fall free from the bike (and thankfully from my shoe) half way thru that last lap, the crankarm taper was left pretty chewed up from that half-lap at full-race effort. I lost several positions and had to go back to retrieve the arm and pedal after finishing the race pedaling one-legged! When I got home I reinstalled it using a generous amount of Loctite Blue in/on clean bolt threads. I then jumped on the pedals with the cranks horizontal and retorqued it. I was then able to finish out the season, several more races, on those old TopLine cranks without any further attention to the bolt. I'll dare say that the Loctite on the bolt threads can save a crankarm with a pretty badly damaged taper caused by loosening.