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http://www.kahtoola.com/microspikes.phpGot a pair of these two seasons ago, best cleats I've ever used.
I'm with you on the screws.........except they rounded of and got smooth. I bought a bag of Kold Kutter ice racing screws 250 in a bag...carbide,sharp edges,self cleaning, am running them on my 4 wheeler also.Good Luck
Only kind I have tried are the yaktrax, and am very satisfied with them.
I've got two titanium hips and enough hardware in my back to make a small spinning reel. My Stabilicers haven't let me down yet.