* Twist Gripper screws provide traction for heavy equipment and groomers
* High-grade carbon steel hex screws with a carbide insert and specially designed threads
* Zinc electroplated to extent the life of the screw with an anti-corrosive loyer to stop oxidation
* All have extra-coarse threads giving Woody's Twist tire screws holding strength to stay in place season after season, and ease removal
* The carbide tip inscreases traction on many surfaces: snow, ice, mud, slippery rocks, wood, hard-packed dirt and gravel, and hills
* Also provide added traction for rounding corners and for surprises under the water
* Packaged in a clearly marked, sturdy plastic container for easy shipping and display