I just put in my first set of pedals. Used a couple drops of blue locktite on the threads after cleaning and inspecting the treads for damage. Blue Locktite is a lubricant while installing, and still allows fastened item to be removed without damage. This way you only have to just seat the pedal lightly, not stressing the aluminum threads by overtightening. Blue locktite will hold them in place and will not cause any damage when you go to remove them again. Used this stuff for years on motorcycles, works like a charm. Just be sure to use the blue color.