Review on DYNOFIT 14mmx1.5 Wheel Spike Lug Nuts: Black M14x1.5 Closed End Nuts for Chevy Silverado, GMC Sierra, F-250, and F-350 (32 Nuts + 1 Socket Key) by Anthoni Hayes

Looks cool. However, if you do a lot of highway driving, you might want to reconsider buying nut bolts. This is because they throw the wheels off balance and you feel some vibration in the steering wheel. It was only at high speeds. This was my experience. So I took them off and went back to regular nuts. Unless you're driving at highway speed (on level pavement) you probably won't notice. At high speeds on concrete, gravel or dirt roads, you probably won't notice it.