Kold Kutter Pro Series Snowmobile Track and ATV Tire Traction Screws 1/2in. Length - 0.190in. Head Height KK012-8-1000

Worked very well, I put 1500 screws total in the tires of a Yamaha banshee and it hooked up like it was on dry pavement. Used only 1/2 screws and only lost a couple.