i'm thinkin about studding up my stock tires i have laying around for riding on the lake (we just got like 1 1/2 of rain and everything is froze tight!). i'm not looking to spend much just want some more bite out on the ice, seems like stock knobs are less than a half inch thick so i was thinkin about some 1/4" screws or a little deeper, something with a deep hex head probably, by the time i order stuff to do a tire liner and actual studs the season will be over, think my screw idea will work? and who's tried this before? maybe it's not worth my time and i'll just wait. lets hear what you've all got to say, thanks